diff --git a/ct/adguard-v5.sh b/ct/adguard-v5.sh
index 32b043ef6..b642f6800 100644
--- a/ct/adguard-v5.sh
+++ b/ct/adguard-v5.sh
@@ -28,7 +28,7 @@ var_os="debian"
 var_version="11"
 NSAPP=$(echo ${APP,,} | tr -d ' ')
 var_install="${NSAPP}-v5-install"
-timezone=$(timedatectl | grep "Time zone" | awk '{print $3}')
+timezone=$(cat /etc/timezone)
 INTEGER='^[0-9]+$'
 YW=$(echo "\033[33m")
 BL=$(echo "\033[36m")
diff --git a/ct/alpine-v5.sh b/ct/alpine-v5.sh
index 3c42c898f..349f840fe 100644
--- a/ct/alpine-v5.sh
+++ b/ct/alpine-v5.sh
@@ -28,7 +28,7 @@ var_os="alpine"
 var_version="3.17"
 NSAPP=$(echo ${APP,,} | tr -d ' ')
 var_install="${NSAPP}-v5-install"
-timezone=$(timedatectl | grep "Time zone" | awk '{print $3}')
+timezone=$(cat /etc/timezone)
 INTEGER='^[0-9]+$'
 YW=$(echo "\033[33m")
 BL=$(echo "\033[36m")
diff --git a/ct/alpine-vaultwarden-v5.sh b/ct/alpine-vaultwarden-v5.sh
index 06df8c11f..37f114930 100644
--- a/ct/alpine-vaultwarden-v5.sh
+++ b/ct/alpine-vaultwarden-v5.sh
@@ -27,7 +27,7 @@ var_os="alpine"
 var_version="3.17"
 NSAPP=$(echo ${APP,,} | tr -d ' ')
 var_install="${NSAPP}-v5-install"
-timezone=$(timedatectl | grep "Time zone" | awk '{print $3}')
+timezone=$(cat /etc/timezone)
 INTEGER='^[0-9]+$'
 YW=$(echo "\033[33m")
 BL=$(echo "\033[36m")
diff --git a/ct/archlinux-v5.sh b/ct/archlinux-v5.sh
index 99b50c6ea..69b826398 100644
--- a/ct/archlinux-v5.sh
+++ b/ct/archlinux-v5.sh
@@ -27,7 +27,7 @@ var_os="archlinux"
 var_version="base"
 NSAPP=$(echo ${APP,,} | tr -d ' ')
 var_install="${NSAPP}-v5-install"
-timezone=$(timedatectl | grep "Time zone" | awk '{print $3}')
+timezone=$(cat /etc/timezone)
 INTEGER='^[0-9]+$'
 YW=$(echo "\033[33m")
 BL=$(echo "\033[36m")
diff --git a/ct/audiobookshelf-v5.sh b/ct/audiobookshelf-v5.sh
index 98128a73e..a9790f62d 100644
--- a/ct/audiobookshelf-v5.sh
+++ b/ct/audiobookshelf-v5.sh
@@ -27,7 +27,7 @@ var_os="debian"
 var_version="11"
 NSAPP=$(echo ${APP,,} | tr -d ' ')
 var_install="${NSAPP}-v5-install"
-timezone=$(timedatectl | grep "Time zone" | awk '{print $3}')
+timezone=$(cat /etc/timezone)
 INTEGER='^[0-9]+$'
 YW=$(echo "\033[33m")
 BL=$(echo "\033[36m")
diff --git a/ct/autobrr-v5.sh b/ct/autobrr-v5.sh
index bdb2b666f..36f1d9b27 100644
--- a/ct/autobrr-v5.sh
+++ b/ct/autobrr-v5.sh
@@ -27,7 +27,7 @@ var_os="debian"
 var_version="11"
 NSAPP=$(echo ${APP,,} | tr -d ' ')
 var_install="${NSAPP}-v5-install"
-timezone=$(timedatectl | grep "Time zone" | awk '{print $3}')
+timezone=$(cat /etc/timezone)
 INTEGER='^[0-9]+$'
 YW=$(echo "\033[33m")
 BL=$(echo "\033[36m")
diff --git a/ct/blocky-v5.sh b/ct/blocky-v5.sh
index 573e06b0c..cbbb49fff 100644
--- a/ct/blocky-v5.sh
+++ b/ct/blocky-v5.sh
@@ -27,7 +27,7 @@ var_os="debian"
 var_version="11"
 NSAPP=$(echo ${APP,,} | tr -d ' ')
 var_install="${NSAPP}-v5-install"
-timezone=$(timedatectl | grep "Time zone" | awk '{print $3}')
+timezone=$(cat /etc/timezone)
 INTEGER='^[0-9]+$'
 YW=$(echo "\033[33m")
 BL=$(echo "\033[36m")
diff --git a/ct/casaos-v5.sh b/ct/casaos-v5.sh
index 1e59b4ae0..ee8ab94a0 100644
--- a/ct/casaos-v5.sh
+++ b/ct/casaos-v5.sh
@@ -27,7 +27,7 @@ var_os="debian"
 var_version="11"
 NSAPP=$(echo ${APP,,} | tr -d ' ')
 var_install="${NSAPP}-v5-install"
-timezone=$(timedatectl | grep "Time zone" | awk '{print $3}')
+timezone=$(cat /etc/timezone)
 INTEGER='^[0-9]+$'
 YW=$(echo "\033[33m")
 BL=$(echo "\033[36m")
diff --git a/ct/changedetection-v5.sh b/ct/changedetection-v5.sh
index 1ba4ed721..7283f9091 100644
--- a/ct/changedetection-v5.sh
+++ b/ct/changedetection-v5.sh
@@ -27,7 +27,7 @@ var_os="debian"
 var_version="11"
 NSAPP=$(echo ${APP,,} | tr -d ' ')
 var_install="${NSAPP}-v5-install"
-timezone=$(timedatectl | grep "Time zone" | awk '{print $3}')
+timezone=$(cat /etc/timezone)
 INTEGER='^[0-9]+$'
 YW=$(echo "\033[33m")
 BL=$(echo "\033[36m")
diff --git a/ct/cronicle-v5.sh b/ct/cronicle-v5.sh
index ac90461a0..06918b551 100644
--- a/ct/cronicle-v5.sh
+++ b/ct/cronicle-v5.sh
@@ -27,7 +27,7 @@ var_os="debian"
 var_version="11"
 NSAPP=$(echo ${APP,,} | tr -d ' ')
 var_install="${NSAPP}-v5-install"
-timezone=$(timedatectl | grep "Time zone" | awk '{print $3}')
+timezone=$(cat /etc/timezone)
 INTEGER='^[0-9]+$'
 YW=$(echo "\033[33m")
 BL=$(echo "\033[36m")
diff --git a/ct/daemonsync-v5.sh b/ct/daemonsync-v5.sh
index 196fe544e..aa53ad773 100644
--- a/ct/daemonsync-v5.sh
+++ b/ct/daemonsync-v5.sh
@@ -27,7 +27,7 @@ var_os="debian"
 var_version="11"
 NSAPP=$(echo ${APP,,} | tr -d ' ')
 var_install="${NSAPP}-v5-install"
-timezone=$(timedatectl | grep "Time zone" | awk '{print $3}')
+timezone=$(cat /etc/timezone)
 INTEGER='^[0-9]+$'
 YW=$(echo "\033[33m")
 BL=$(echo "\033[36m")
diff --git a/ct/dashy-v5.sh b/ct/dashy-v5.sh
index afd67aaee..6a8c85b29 100644
--- a/ct/dashy-v5.sh
+++ b/ct/dashy-v5.sh
@@ -27,7 +27,7 @@ var_os="debian"
 var_version="11"
 NSAPP=$(echo ${APP,,} | tr -d ' ')
 var_install="${NSAPP}-v5-install"
-timezone=$(timedatectl | grep "Time zone" | awk '{print $3}')
+timezone=$(cat /etc/timezone)
 INTEGER='^[0-9]+$'
 YW=$(echo "\033[33m")
 BL=$(echo "\033[36m")
diff --git a/ct/debian-v5.sh b/ct/debian-v5.sh
index 278f8bb94..54cc59760 100644
--- a/ct/debian-v5.sh
+++ b/ct/debian-v5.sh
@@ -27,7 +27,7 @@ var_os="debian"
 var_version="11"
 NSAPP=$(echo ${APP,,} | tr -d ' ')
 var_install="${NSAPP}-v5-install"
-timezone=$(timedatectl | grep "Time zone" | awk '{print $3}')
+timezone=$(cat /etc/timezone)
 INTEGER='^[0-9]+$'
 YW=$(echo "\033[33m")
 BL=$(echo "\033[36m")
diff --git a/ct/deconz-v5.sh b/ct/deconz-v5.sh
index 38df740be..86fda9a62 100644
--- a/ct/deconz-v5.sh
+++ b/ct/deconz-v5.sh
@@ -27,7 +27,7 @@ var_os="ubuntu"
 var_version="20.04"
 NSAPP=$(echo ${APP,,} | tr -d ' ')
 var_install="${NSAPP}-v5-install"
-timezone=$(timedatectl | grep "Time zone" | awk '{print $3}')
+timezone=$(cat /etc/timezone)
 INTEGER='^[0-9]+$'
 YW=$(echo "\033[33m")
 BL=$(echo "\033[36m")
diff --git a/ct/deluge-v5.sh b/ct/deluge-v5.sh
index fd515d619..11d82a663 100644
--- a/ct/deluge-v5.sh
+++ b/ct/deluge-v5.sh
@@ -28,7 +28,7 @@ var_os="debian"
 var_version="11"
 NSAPP=$(echo ${APP,,} | tr -d ' ')
 var_install="${NSAPP}-v5-install"
-timezone=$(timedatectl | grep "Time zone" | awk '{print $3}')
+timezone=$(cat /etc/timezone)
 INTEGER='^[0-9]+$'
 YW=$(echo "\033[33m")
 BL=$(echo "\033[36m")
diff --git a/ct/devuan-v5.sh b/ct/devuan-v5.sh
index 29ee1464f..2b124e54c 100644
--- a/ct/devuan-v5.sh
+++ b/ct/devuan-v5.sh
@@ -27,7 +27,7 @@ var_os="devuan"
 var_version="4.0"
 NSAPP=$(echo ${APP,,} | tr -d ' ')
 var_install="${NSAPP}-v5-install"
-timezone=$(timedatectl | grep "Time zone" | awk '{print $3}')
+timezone=$(cat /etc/timezone)
 INTEGER='^[0-9]+$'
 YW=$(echo "\033[33m")
 BL=$(echo "\033[36m")
diff --git a/ct/docker-v5.sh b/ct/docker-v5.sh
index a5183550d..e0f399520 100644
--- a/ct/docker-v5.sh
+++ b/ct/docker-v5.sh
@@ -27,7 +27,7 @@ var_os="debian"
 var_version="11"
 NSAPP=$(echo ${APP,,} | tr -d ' ')
 var_install="${NSAPP}-v5-install"
-timezone=$(timedatectl | grep "Time zone" | awk '{print $3}')
+timezone=$(cat /etc/timezone)
 INTEGER='^[0-9]+$'
 YW=$(echo "\033[33m")
 BL=$(echo "\033[36m")
diff --git a/ct/emby-v5.sh b/ct/emby-v5.sh
index dd20a0b37..ec6c54f56 100644
--- a/ct/emby-v5.sh
+++ b/ct/emby-v5.sh
@@ -27,7 +27,7 @@ var_os="ubuntu"
 var_version="20.04"
 NSAPP=$(echo ${APP,,} | tr -d ' ')
 var_install="${NSAPP}-v5-install"
-timezone=$(timedatectl | grep "Time zone" | awk '{print $3}')
+timezone=$(cat /etc/timezone)
 INTEGER='^[0-9]+$'
 YW=$(echo "\033[33m")
 BL=$(echo "\033[36m")
diff --git a/ct/emqx-v5.sh b/ct/emqx-v5.sh
index 4828a5b4a..22f05ffc4 100644
--- a/ct/emqx-v5.sh
+++ b/ct/emqx-v5.sh
@@ -27,7 +27,7 @@ var_os="debian"
 var_version="11"
 NSAPP=$(echo ${APP,,} | tr -d ' ')
 var_install="${NSAPP}-v5-install"
-timezone=$(timedatectl | grep "Time zone" | awk '{print $3}')
+timezone=$(cat /etc/timezone)
 INTEGER='^[0-9]+$'
 YW=$(echo "\033[33m")
 BL=$(echo "\033[36m")
diff --git a/ct/esphome-v5.sh b/ct/esphome-v5.sh
index e9ca6cf25..e75e9f07b 100644
--- a/ct/esphome-v5.sh
+++ b/ct/esphome-v5.sh
@@ -27,7 +27,7 @@ var_os="debian"
 var_version="11"
 NSAPP=$(echo ${APP,,} | tr -d ' ')
 var_install="${NSAPP}-v5-install"
-timezone=$(timedatectl | grep "Time zone" | awk '{print $3}')
+timezone=$(cat /etc/timezone)
 INTEGER='^[0-9]+$'
 YW=$(echo "\033[33m")
 BL=$(echo "\033[36m")
diff --git a/ct/go2rtc-v5.sh b/ct/go2rtc-v5.sh
index 3efc59bfb..11af63130 100644
--- a/ct/go2rtc-v5.sh
+++ b/ct/go2rtc-v5.sh
@@ -27,7 +27,7 @@ var_os="debian"
 var_version="11"
 NSAPP=$(echo ${APP,,} | tr -d ' ')
 var_install="${NSAPP}-v5-install"
-timezone=$(timedatectl | grep "Time zone" | awk '{print $3}')
+timezone=$(cat /etc/timezone)
 INTEGER='^[0-9]+$'
 YW=$(echo "\033[33m")
 BL=$(echo "\033[36m")
diff --git a/ct/grafana-v5.sh b/ct/grafana-v5.sh
index f94b18e7c..ccddc65d4 100644
--- a/ct/grafana-v5.sh
+++ b/ct/grafana-v5.sh
@@ -27,7 +27,7 @@ var_os="debian"
 var_version="11"
 NSAPP=$(echo ${APP,,} | tr -d ' ')
 var_install="${NSAPP}-v5-install"
-timezone=$(timedatectl | grep "Time zone" | awk '{print $3}')
+timezone=$(cat /etc/timezone)
 INTEGER='^[0-9]+$'
 YW=$(echo "\033[33m")
 BL=$(echo "\033[36m")
diff --git a/ct/grocy-v5.sh b/ct/grocy-v5.sh
index 2525cdb21..02944358c 100644
--- a/ct/grocy-v5.sh
+++ b/ct/grocy-v5.sh
@@ -27,7 +27,7 @@ var_os="debian"
 var_version="11"
 NSAPP=$(echo ${APP,,} | tr -d ' ')
 var_install="${NSAPP}-v5-install"
-timezone=$(timedatectl | grep "Time zone" | awk '{print $3}')
+timezone=$(cat /etc/timezone)
 INTEGER='^[0-9]+$'
 YW=$(echo "\033[33m")
 BL=$(echo "\033[36m")
diff --git a/ct/heimdalldashboard-v5.sh b/ct/heimdalldashboard-v5.sh
index 656db61ae..b09170c60 100644
--- a/ct/heimdalldashboard-v5.sh
+++ b/ct/heimdalldashboard-v5.sh
@@ -27,7 +27,7 @@ var_os="debian"
 var_version="11"
 NSAPP=$(echo ${APP,,} | tr -d ' ')
 var_install="${NSAPP}-v5-install"
-timezone=$(timedatectl | grep "Time zone" | awk '{print $3}')
+timezone=$(cat /etc/timezone)
 INTEGER='^[0-9]+$'
 YW=$(echo "\033[33m")
 BL=$(echo "\033[36m")
diff --git a/ct/homeassistant-core-v5.sh b/ct/homeassistant-core-v5.sh
index 40c2d5d11..81ac9bb9e 100644
--- a/ct/homeassistant-core-v5.sh
+++ b/ct/homeassistant-core-v5.sh
@@ -27,7 +27,7 @@ var_os="debian"
 var_version="11"
 NSAPP=$(echo ${APP,,} | tr -d ' ')
 var_install="${NSAPP}-v5-install"
-timezone=$(timedatectl | grep "Time zone" | awk '{print $3}')
+timezone=$(cat /etc/timezone)
 INTEGER='^[0-9]+$'
 YW=$(echo "\033[33m")
 BL=$(echo "\033[36m")
diff --git a/ct/homeassistant-v5.sh b/ct/homeassistant-v5.sh
index 5537dc7e0..da4c31ede 100644
--- a/ct/homeassistant-v5.sh
+++ b/ct/homeassistant-v5.sh
@@ -27,7 +27,7 @@ var_os="debian"
 var_version="11"
 NSAPP=$(echo ${APP,,} | tr -d ' ')
 var_install="${NSAPP}-v5-install"
-timezone=$(timedatectl | grep "Time zone" | awk '{print $3}')
+timezone=$(cat /etc/timezone)
 INTEGER='^[0-9]+$'
 YW=$(echo "\033[33m")
 BL=$(echo "\033[36m")
diff --git a/ct/homebridge-v5.sh b/ct/homebridge-v5.sh
index cf330c37d..e77dbc515 100644
--- a/ct/homebridge-v5.sh
+++ b/ct/homebridge-v5.sh
@@ -27,7 +27,7 @@ var_os="debian"
 var_version="11"
 NSAPP=$(echo ${APP,,} | tr -d ' ')
 var_install="${NSAPP}-v5-install"
-timezone=$(timedatectl | grep "Time zone" | awk '{print $3}')
+timezone=$(cat /etc/timezone)
 INTEGER='^[0-9]+$'
 YW=$(echo "\033[33m")
 BL=$(echo "\033[36m")
diff --git a/ct/homepage-v5.sh b/ct/homepage-v5.sh
index 8ef34ca23..32bc3745e 100644
--- a/ct/homepage-v5.sh
+++ b/ct/homepage-v5.sh
@@ -27,7 +27,7 @@ var_os="debian"
 var_version="11"
 NSAPP=$(echo ${APP,,} | tr -d ' ')
 var_install="${NSAPP}-v5-install"
-timezone=$(timedatectl | grep "Time zone" | awk '{print $3}')
+timezone=$(cat /etc/timezone)
 INTEGER='^[0-9]+$'
 YW=$(echo "\033[33m")
 BL=$(echo "\033[36m")
diff --git a/ct/homer-v5.sh b/ct/homer-v5.sh
index fcf78f887..bca46fb8b 100644
--- a/ct/homer-v5.sh
+++ b/ct/homer-v5.sh
@@ -27,7 +27,7 @@ var_os="debian"
 var_version="11"
 NSAPP=$(echo ${APP,,} | tr -d ' ')
 var_install="${NSAPP}-v5-install"
-timezone=$(timedatectl | grep "Time zone" | awk '{print $3}')
+timezone=$(cat /etc/timezone)
 INTEGER='^[0-9]+$'
 YW=$(echo "\033[33m")
 BL=$(echo "\033[36m")
diff --git a/ct/hyperion-v5.sh b/ct/hyperion-v5.sh
index ada0c0d77..f57f81b0c 100644
--- a/ct/hyperion-v5.sh
+++ b/ct/hyperion-v5.sh
@@ -27,7 +27,7 @@ var_os="debian"
 var_version="11"
 NSAPP=$(echo ${APP,,} | tr -d ' ')
 var_install="${NSAPP}-v5-install"
-timezone=$(timedatectl | grep "Time zone" | awk '{print $3}')
+timezone=$(cat /etc/timezone)
 INTEGER='^[0-9]+$'
 YW=$(echo "\033[33m")
 BL=$(echo "\033[36m")
diff --git a/ct/influxdb-v5.sh b/ct/influxdb-v5.sh
index 74d8063ee..7306046c6 100644
--- a/ct/influxdb-v5.sh
+++ b/ct/influxdb-v5.sh
@@ -27,7 +27,7 @@ var_os="debian"
 var_version="11"
 NSAPP=$(echo ${APP,,} | tr -d ' ')
 var_install="${NSAPP}-v5-install"
-timezone=$(timedatectl | grep "Time zone" | awk '{print $3}')
+timezone=$(cat /etc/timezone)
 INTEGER='^[0-9]+$'
 YW=$(echo "\033[33m")
 BL=$(echo "\033[36m")
diff --git a/ct/iobroker-v5.sh b/ct/iobroker-v5.sh
index f022bcb42..77e5a5e83 100644
--- a/ct/iobroker-v5.sh
+++ b/ct/iobroker-v5.sh
@@ -27,7 +27,7 @@ var_os="debian"
 var_version="11"
 NSAPP=$(echo ${APP,,} | tr -d ' ')
 var_install="${NSAPP}-v5-install"
-timezone=$(timedatectl | grep "Time zone" | awk '{print $3}')
+timezone=$(cat /etc/timezone)
 INTEGER='^[0-9]+$'
 YW=$(echo "\033[33m")
 BL=$(echo "\033[36m")
diff --git a/ct/jackett-v5.sh b/ct/jackett-v5.sh
index 554548b5a..485c97cf4 100644
--- a/ct/jackett-v5.sh
+++ b/ct/jackett-v5.sh
@@ -26,7 +26,7 @@ var_os="debian"
 var_version="11"
 NSAPP=$(echo ${APP,,} | tr -d ' ')
 var_install="${NSAPP}-v5-install"
-timezone=$(timedatectl | grep "Time zone" | awk '{print $3}')
+timezone=$(cat /etc/timezone)
 INTEGER='^[0-9]+$'
 YW=$(echo "\033[33m")
 BL=$(echo "\033[36m")
diff --git a/ct/jellyfin-v5.sh b/ct/jellyfin-v5.sh
index 5af15bc03..d124f71a1 100644
--- a/ct/jellyfin-v5.sh
+++ b/ct/jellyfin-v5.sh
@@ -28,7 +28,7 @@ var_os="ubuntu"
 var_version="20.04"
 NSAPP=$(echo ${APP,,} | tr -d ' ')
 var_install="${NSAPP}-v5-install"
-timezone=$(timedatectl | grep "Time zone" | awk '{print $3}')
+timezone=$(cat /etc/timezone)
 INTEGER='^[0-9]+$'
 YW=$(echo "\033[33m")
 BL=$(echo "\033[36m")
diff --git a/ct/k0s-v5.sh b/ct/k0s-v5.sh
index 9cf74443e..510c5aba8 100644
--- a/ct/k0s-v5.sh
+++ b/ct/k0s-v5.sh
@@ -27,7 +27,7 @@ var_os="debian"
 var_version="11"
 NSAPP=$(echo ${APP,,} | tr -d ' ')
 var_install="${NSAPP}-v5-install"
-timezone=$(timedatectl | grep "Time zone" | awk '{print $3}')
+timezone=$(cat /etc/timezone)
 INTEGER='^[0-9]+$'
 YW=$(echo "\033[33m")
 BL=$(echo "\033[36m")
diff --git a/ct/kavita-v5.sh b/ct/kavita-v5.sh
index d1869d7bc..d2a0aee07 100644
--- a/ct/kavita-v5.sh
+++ b/ct/kavita-v5.sh
@@ -27,7 +27,7 @@ var_os="debian"
 var_version="11"
 NSAPP=$(echo ${APP,,} | tr -d ' ')
 var_install="${NSAPP}-v5-install"
-timezone=$(timedatectl | grep "Time zone" | awk '{print $3}')
+timezone=$(cat /etc/timezone)
 INTEGER='^[0-9]+$'
 YW=$(echo "\033[33m")
 BL=$(echo "\033[36m")
diff --git a/ct/keycloak-v5.sh b/ct/keycloak-v5.sh
index 8f0ebe5c2..65043f388 100644
--- a/ct/keycloak-v5.sh
+++ b/ct/keycloak-v5.sh
@@ -28,7 +28,7 @@ var_os="debian"
 var_version="11"
 NSAPP=$(echo ${APP,,} | tr -d ' ')
 var_install="${NSAPP}-v5-install"
-timezone=$(timedatectl | grep "Time zone" | awk '{print $3}')
+timezone=$(cat /etc/timezone)
 INTEGER='^[0-9]+$'
 YW=$(echo "\033[33m")
 BL=$(echo "\033[36m")
diff --git a/ct/lidarr-v5.sh b/ct/lidarr-v5.sh
index 0383aded6..c5973a740 100644
--- a/ct/lidarr-v5.sh
+++ b/ct/lidarr-v5.sh
@@ -27,7 +27,7 @@ var_os="debian"
 var_version="11"
 NSAPP=$(echo ${APP,,} | tr -d ' ')
 var_install="${NSAPP}-v5-install"
-timezone=$(timedatectl | grep "Time zone" | awk '{print $3}')
+timezone=$(cat /etc/timezone)
 INTEGER='^[0-9]+$'
 YW=$(echo "\033[33m")
 BL=$(echo "\033[36m")
diff --git a/ct/magicmirror-v5.sh b/ct/magicmirror-v5.sh
index 606b6b412..8da28b492 100644
--- a/ct/magicmirror-v5.sh
+++ b/ct/magicmirror-v5.sh
@@ -28,7 +28,7 @@ var_os="debian"
 var_version="11"
 NSAPP=$(echo ${APP,,} | tr -d ' ')
 var_install="${NSAPP}-v5-install"
-timezone=$(timedatectl | grep "Time zone" | awk '{print $3}')
+timezone=$(cat /etc/timezone)
 INTEGER='^[0-9]+$'
 YW=$(echo "\033[33m")
 BL=$(echo "\033[36m")
diff --git a/ct/mariadb-v5.sh b/ct/mariadb-v5.sh
index 5e1dd9ab0..ca18035a0 100644
--- a/ct/mariadb-v5.sh
+++ b/ct/mariadb-v5.sh
@@ -27,7 +27,7 @@ var_os="debian"
 var_version="11"
 NSAPP=$(echo ${APP,,} | tr -d ' ')
 var_install="${NSAPP}-v5-install"
-timezone=$(timedatectl | grep "Time zone" | awk '{print $3}')
+timezone=$(cat /etc/timezone)
 INTEGER='^[0-9]+$'
 YW=$(echo "\033[33m")
 BL=$(echo "\033[36m")
diff --git a/ct/meshcentral-v5.sh b/ct/meshcentral-v5.sh
index 336e5d9fd..be0172026 100644
--- a/ct/meshcentral-v5.sh
+++ b/ct/meshcentral-v5.sh
@@ -27,7 +27,7 @@ var_os="debian"
 var_version="11"
 NSAPP=$(echo ${APP,,} | tr -d ' ')
 var_install="${NSAPP}-v5-install"
-timezone=$(timedatectl | grep "Time zone" | awk '{print $3}')
+timezone=$(cat /etc/timezone)
 INTEGER='^[0-9]+$'
 YW=$(echo "\033[33m")
 BL=$(echo "\033[36m")
diff --git a/ct/motioneye-v5.sh b/ct/motioneye-v5.sh
index e000822a2..907f91828 100644
--- a/ct/motioneye-v5.sh
+++ b/ct/motioneye-v5.sh
@@ -27,7 +27,7 @@ var_os="debian"
 var_version="11"
 NSAPP=$(echo ${APP,,} | tr -d ' ')
 var_install="${NSAPP}-v5-install"
-timezone=$(timedatectl | grep "Time zone" | awk '{print $3}')
+timezone=$(cat /etc/timezone)
 INTEGER='^[0-9]+$'
 YW=$(echo "\033[33m")
 BL=$(echo "\033[36m")
diff --git a/ct/mqtt-v5.sh b/ct/mqtt-v5.sh
index a43ce1b94..e16e0acd5 100644
--- a/ct/mqtt-v5.sh
+++ b/ct/mqtt-v5.sh
@@ -26,7 +26,7 @@ var_os="debian"
 var_version="11"
 NSAPP=$(echo ${APP,,} | tr -d ' ')
 var_install="${NSAPP}-v5-install"
-timezone=$(timedatectl | grep "Time zone" | awk '{print $3}')
+timezone=$(cat /etc/timezone)
 INTEGER='^[0-9]+$'
 YW=$(echo "\033[33m")
 BL=$(echo "\033[36m")
diff --git a/ct/n8n-v5.sh b/ct/n8n-v5.sh
index cac60cdce..046c20c76 100644
--- a/ct/n8n-v5.sh
+++ b/ct/n8n-v5.sh
@@ -28,7 +28,7 @@ var_os="debian"
 var_version="11"
 NSAPP=$(echo ${APP,,} | tr -d ' ')
 var_install="${NSAPP}-v5-install"
-timezone=$(timedatectl | grep "Time zone" | awk '{print $3}')
+timezone=$(cat /etc/timezone)
 INTEGER='^[0-9]+$'
 YW=$(echo "\033[33m")
 BL=$(echo "\033[36m")
diff --git a/ct/navidrome-v5.sh b/ct/navidrome-v5.sh
index 4cb572226..99606d171 100644
--- a/ct/navidrome-v5.sh
+++ b/ct/navidrome-v5.sh
@@ -27,7 +27,7 @@ var_os="debian"
 var_version="11"
 NSAPP=$(echo ${APP,,} | tr -d ' ')
 var_install="${NSAPP}-v5-install"
-timezone=$(timedatectl | grep "Time zone" | awk '{print $3}')
+timezone=$(cat /etc/timezone)
 INTEGER='^[0-9]+$'
 YW=$(echo "\033[33m")
 BL=$(echo "\033[36m")
diff --git a/ct/nextcloudpi-v5.sh b/ct/nextcloudpi-v5.sh
index 1e663eaa3..4087e1912 100644
--- a/ct/nextcloudpi-v5.sh
+++ b/ct/nextcloudpi-v5.sh
@@ -27,7 +27,7 @@ var_os="debian"
 var_version="11"
 NSAPP=$(echo ${APP,,} | tr -d ' ')
 var_install="${NSAPP}-v5-install"
-timezone=$(timedatectl | grep "Time zone" | awk '{print $3}')
+timezone=$(cat /etc/timezone)
 INTEGER='^[0-9]+$'
 YW=$(echo "\033[33m")
 BL=$(echo "\033[36m")
diff --git a/ct/nginxproxymanager-v5.sh b/ct/nginxproxymanager-v5.sh
index 71d7c8e67..e2a6f4214 100644
--- a/ct/nginxproxymanager-v5.sh
+++ b/ct/nginxproxymanager-v5.sh
@@ -28,7 +28,7 @@ var_os="debian"
 var_version="11"
 NSAPP=$(echo ${APP,,} | tr -d ' ')
 var_install="${NSAPP}-v5-install"
-timezone=$(timedatectl | grep "Time zone" | awk '{print $3}')
+timezone=$(cat /etc/timezone)
 INTEGER='^[0-9]+$'
 YW=$(echo "\033[33m")
 BL=$(echo "\033[36m")
diff --git a/ct/nocodb-v5.sh b/ct/nocodb-v5.sh
index af3432804..7f5cc1b42 100644
--- a/ct/nocodb-v5.sh
+++ b/ct/nocodb-v5.sh
@@ -27,7 +27,7 @@ var_os="debian"
 var_version="11"
 NSAPP=$(echo ${APP,,} | tr -d ' ')
 var_install="${NSAPP}-v5-install"
-timezone=$(timedatectl | grep "Time zone" | awk '{print $3}')
+timezone=$(cat /etc/timezone)
 INTEGER='^[0-9]+$'
 YW=$(echo "\033[33m")
 BL=$(echo "\033[36m")
diff --git a/ct/node-red-v5.sh b/ct/node-red-v5.sh
index 7051fbf28..6fae86240 100644
--- a/ct/node-red-v5.sh
+++ b/ct/node-red-v5.sh
@@ -27,7 +27,7 @@ var_os="debian"
 var_version="11"
 NSAPP=$(echo ${APP,,} | tr -d ' ')
 var_install="${NSAPP}-v5-install"
-timezone=$(timedatectl | grep "Time zone" | awk '{print $3}')
+timezone=$(cat /etc/timezone)
 INTEGER='^[0-9]+$'
 YW=$(echo "\033[33m")
 BL=$(echo "\033[36m")
diff --git a/ct/omada-v5.sh b/ct/omada-v5.sh
index 1f7b2c6df..e3b04bc12 100644
--- a/ct/omada-v5.sh
+++ b/ct/omada-v5.sh
@@ -27,7 +27,7 @@ var_os="ubuntu"
 var_version="20.04"
 NSAPP=$(echo ${APP,,} | tr -d ' ')
 var_install="${NSAPP}-v5-install"
-timezone=$(timedatectl | grep "Time zone" | awk '{print $3}')
+timezone=$(cat /etc/timezone)
 INTEGER='^[0-9]+$'
 YW=$(echo "\033[33m")
 BL=$(echo "\033[36m")
diff --git a/ct/omv-v5.sh b/ct/omv-v5.sh
index f98708b7d..542c9fa32 100644
--- a/ct/omv-v5.sh
+++ b/ct/omv-v5.sh
@@ -28,7 +28,7 @@ var_os="debian"
 var_version="11"
 NSAPP=$(echo ${APP,,} | tr -d ' ')
 var_install="${NSAPP}-v5-install"
-timezone=$(timedatectl | grep "Time zone" | awk '{print $3}')
+timezone=$(cat /etc/timezone)
 INTEGER='^[0-9]+$'
 YW=$(echo "\033[33m")
 BL=$(echo "\033[36m")
diff --git a/ct/openhab-v5.sh b/ct/openhab-v5.sh
index a21c2b72f..23f0c1775 100644
--- a/ct/openhab-v5.sh
+++ b/ct/openhab-v5.sh
@@ -28,7 +28,7 @@ var_os="debian"
 var_version="11"
 NSAPP=$(echo ${APP,,} | tr -d ' ')
 var_install="${NSAPP}-v5-install"
-timezone=$(timedatectl | grep "Time zone" | awk '{print $3}')
+timezone=$(cat /etc/timezone)
 INTEGER='^[0-9]+$'
 YW=$(echo "\033[33m")
 BL=$(echo "\033[36m")
diff --git a/ct/paperless-ngx-v5.sh b/ct/paperless-ngx-v5.sh
index 1f0d2ce0c..4ffeb59a7 100644
--- a/ct/paperless-ngx-v5.sh
+++ b/ct/paperless-ngx-v5.sh
@@ -28,7 +28,7 @@ var_os="debian"
 var_version="11"
 NSAPP=$(echo ${APP,,} | tr -d ' ')
 var_install="${NSAPP}-v5-install"
-timezone=$(timedatectl | grep "Time zone" | awk '{print $3}')
+timezone=$(cat /etc/timezone)
 INTEGER='^[0-9]+$'
 YW=$(echo "\033[33m")
 BL=$(echo "\033[36m")
diff --git a/ct/photoprism-v5.sh b/ct/photoprism-v5.sh
index 21de93796..d182a728c 100644
--- a/ct/photoprism-v5.sh
+++ b/ct/photoprism-v5.sh
@@ -27,7 +27,7 @@ var_os="debian"
 var_version="11"
 NSAPP=$(echo ${APP,,} | tr -d ' ')
 var_install="${NSAPP}-v5-install"
-timezone=$(timedatectl | grep "Time zone" | awk '{print $3}')
+timezone=$(cat /etc/timezone)
 INTEGER='^[0-9]+$'
 YW=$(echo "\033[33m")
 BL=$(echo "\033[36m")
diff --git a/ct/pihole-v5.sh b/ct/pihole-v5.sh
index 2838c2547..486e2d285 100644
--- a/ct/pihole-v5.sh
+++ b/ct/pihole-v5.sh
@@ -27,7 +27,7 @@ var_os="debian"
 var_version="11"
 NSAPP=$(echo ${APP,,} | tr -d ' ')
 var_install="${NSAPP}-v5-install"
-timezone=$(timedatectl | grep "Time zone" | awk '{print $3}')
+timezone=$(cat /etc/timezone)
 INTEGER='^[0-9]+$'
 YW=$(echo "\033[33m")
 BL=$(echo "\033[36m")
diff --git a/ct/plex-v5.sh b/ct/plex-v5.sh
index 77f384ed3..62243b554 100644
--- a/ct/plex-v5.sh
+++ b/ct/plex-v5.sh
@@ -27,7 +27,7 @@ var_os="ubuntu"
 var_version="20.04"
 NSAPP=$(echo ${APP,,} | tr -d ' ')
 var_install="${NSAPP}-v5-install"
-timezone=$(timedatectl | grep "Time zone" | awk '{print $3}')
+timezone=$(cat /etc/timezone)
 INTEGER='^[0-9]+$'
 YW=$(echo "\033[33m")
 BL=$(echo "\033[36m")
diff --git a/ct/podman-homeassistant-v5.sh b/ct/podman-homeassistant-v5.sh
index a7beabb33..9553f2297 100644
--- a/ct/podman-homeassistant-v5.sh
+++ b/ct/podman-homeassistant-v5.sh
@@ -31,7 +31,7 @@ var_os="debian"
 var_version="11"
 NSAPP=$(echo ${APP,,} | tr -d ' ')
 var_install="${NSAPP}-v5-install"
-timezone=$(timedatectl | grep "Time zone" | awk '{print $3}')
+timezone=$(cat /etc/timezone)
 INTEGER='^[0-9]+$'
 YW=$(echo "\033[33m")
 BL=$(echo "\033[36m")
diff --git a/ct/podman-v5.sh b/ct/podman-v5.sh
index 05cd6537d..a388ea5ff 100644
--- a/ct/podman-v5.sh
+++ b/ct/podman-v5.sh
@@ -27,7 +27,7 @@ var_os="debian"
 var_version="11"
 NSAPP=$(echo ${APP,,} | tr -d ' ')
 var_install="${NSAPP}-v5-install"
-timezone=$(timedatectl | grep "Time zone" | awk '{print $3}')
+timezone=$(cat /etc/timezone)
 INTEGER='^[0-9]+$'
 YW=$(echo "\033[33m")
 BL=$(echo "\033[36m")
diff --git a/ct/postgresql-v5.sh b/ct/postgresql-v5.sh
index 91bf1f6a1..d8072ccfe 100644
--- a/ct/postgresql-v5.sh
+++ b/ct/postgresql-v5.sh
@@ -27,7 +27,7 @@ var_os="debian"
 var_version="11"
 NSAPP=$(echo ${APP,,} | tr -d ' ')
 var_install="${NSAPP}-v5-install"
-timezone=$(timedatectl | grep "Time zone" | awk '{print $3}')
+timezone=$(cat /etc/timezone)
 INTEGER='^[0-9]+$'
 YW=$(echo "\033[33m")
 BL=$(echo "\033[36m")
diff --git a/ct/prometheus-v5.sh b/ct/prometheus-v5.sh
index a55e74cc2..d0977b6ca 100644
--- a/ct/prometheus-v5.sh
+++ b/ct/prometheus-v5.sh
@@ -27,7 +27,7 @@ var_os="debian"
 var_version="11"
 NSAPP=$(echo ${APP,,} | tr -d ' ')
 var_install="${NSAPP}-v5-install"
-timezone=$(timedatectl | grep "Time zone" | awk '{print $3}')
+timezone=$(cat /etc/timezone)
 INTEGER='^[0-9]+$'
 YW=$(echo "\033[33m")
 BL=$(echo "\033[36m")
diff --git a/ct/prowlarr-v5.sh b/ct/prowlarr-v5.sh
index c23b23a5f..e73b72498 100644
--- a/ct/prowlarr-v5.sh
+++ b/ct/prowlarr-v5.sh
@@ -27,7 +27,7 @@ var_os="debian"
 var_version="11"
 NSAPP=$(echo ${APP,,} | tr -d ' ')
 var_install="${NSAPP}-v5-install"
-timezone=$(timedatectl | grep "Time zone" | awk '{print $3}')
+timezone=$(cat /etc/timezone)
 INTEGER='^[0-9]+$'
 YW=$(echo "\033[33m")
 BL=$(echo "\033[36m")
diff --git a/ct/qbittorrent-v5.sh b/ct/qbittorrent-v5.sh
index ef84f26ac..5eb36c373 100644
--- a/ct/qbittorrent-v5.sh
+++ b/ct/qbittorrent-v5.sh
@@ -27,7 +27,7 @@ var_os="debian"
 var_version="11"
 NSAPP=$(echo ${APP,,} | tr -d ' ')
 var_install="${NSAPP}-v5-install"
-timezone=$(timedatectl | grep "Time zone" | awk '{print $3}')
+timezone=$(cat /etc/timezone)
 INTEGER='^[0-9]+$'
 YW=$(echo "\033[33m")
 BL=$(echo "\033[36m")
diff --git a/ct/radarr-v5.sh b/ct/radarr-v5.sh
index 77559143c..cf7cf23f1 100644
--- a/ct/radarr-v5.sh
+++ b/ct/radarr-v5.sh
@@ -27,7 +27,7 @@ var_os="debian"
 var_version="11"
 NSAPP=$(echo ${APP,,} | tr -d ' ')
 var_install="${NSAPP}-v5-install"
-timezone=$(timedatectl | grep "Time zone" | awk '{print $3}')
+timezone=$(cat /etc/timezone)
 INTEGER='^[0-9]+$'
 YW=$(echo "\033[33m")
 BL=$(echo "\033[36m")
diff --git a/ct/readarr-v5.sh b/ct/readarr-v5.sh
index 7ab409015..4b32964c7 100644
--- a/ct/readarr-v5.sh
+++ b/ct/readarr-v5.sh
@@ -27,7 +27,7 @@ var_os="debian"
 var_version="11"
 NSAPP=$(echo ${APP,,} | tr -d ' ')
 var_install="${NSAPP}-v5-install"
-timezone=$(timedatectl | grep "Time zone" | awk '{print $3}')
+timezone=$(cat /etc/timezone)
 INTEGER='^[0-9]+$'
 YW=$(echo "\033[33m")
 BL=$(echo "\033[36m")
diff --git a/ct/rockylinux-v5.sh b/ct/rockylinux-v5.sh
index ddd6517b5..96f1f30ec 100644
--- a/ct/rockylinux-v5.sh
+++ b/ct/rockylinux-v5.sh
@@ -28,7 +28,7 @@ var_os="rockylinux"
 var_version="9"
 NSAPP=$(echo ${APP,,} | tr -d ' ')
 var_install="${NSAPP}-v5-install"
-timezone=$(timedatectl | grep "Time zone" | awk '{print $3}')
+timezone=$(cat /etc/timezone)
 INTEGER='^[0-9]+$'
 YW=$(echo "\033[33m")
 BL=$(echo "\033[36m")
diff --git a/ct/rstptoweb-v5.sh b/ct/rstptoweb-v5.sh
index 670fbe2d3..e0bebee4b 100644
--- a/ct/rstptoweb-v5.sh
+++ b/ct/rstptoweb-v5.sh
@@ -26,7 +26,7 @@ var_os="debian"
 var_version="11"
 NSAPP=$(echo ${APP,,} | tr -d ' ')
 var_install="${NSAPP}-v5-install"
-timezone=$(timedatectl | grep "Time zone" | awk '{print $3}')
+timezone=$(cat /etc/timezone)
 INTEGER='^[0-9]+$'
 YW=$(echo "\033[33m")
 BL=$(echo "\033[36m")
diff --git a/ct/sabnzbd-v5.sh b/ct/sabnzbd-v5.sh
index 3076ab526..a3f9457db 100644
--- a/ct/sabnzbd-v5.sh
+++ b/ct/sabnzbd-v5.sh
@@ -27,7 +27,7 @@ var_os="debian"
 var_version="11"
 NSAPP=$(echo ${APP,,} | tr -d ' ')
 var_install="${NSAPP}-v5-install"
-timezone=$(timedatectl | grep "Time zone" | awk '{print $3}')
+timezone=$(cat /etc/timezone)
 INTEGER='^[0-9]+$'
 YW=$(echo "\033[33m")
 BL=$(echo "\033[36m")
diff --git a/ct/scrypted-v5.sh b/ct/scrypted-v5.sh
index aff8cf7bf..1021fd8c6 100644
--- a/ct/scrypted-v5.sh
+++ b/ct/scrypted-v5.sh
@@ -28,7 +28,7 @@ var_os="debian"
 var_version="11"
 NSAPP=$(echo ${APP,,} | tr -d ' ')
 var_install="${NSAPP}-v5-install"
-timezone=$(timedatectl | grep "Time zone" | awk '{print $3}')
+timezone=$(cat /etc/timezone)
 INTEGER='^[0-9]+$'
 YW=$(echo "\033[33m")
 BL=$(echo "\033[36m")
diff --git a/ct/shinobi-v5.sh b/ct/shinobi-v5.sh
index 9d854a571..f24118555 100644
--- a/ct/shinobi-v5.sh
+++ b/ct/shinobi-v5.sh
@@ -27,7 +27,7 @@ var_os="ubuntu"
 var_version="22.04"
 NSAPP=$(echo ${APP,,} | tr -d ' ')
 var_install="${NSAPP}-v5-install"
-timezone=$(timedatectl | grep "Time zone" | awk '{print $3}')
+timezone=$(cat /etc/timezone)
 INTEGER='^[0-9]+$'
 YW=$(echo "\033[33m")
 BL=$(echo "\033[36m")
diff --git a/ct/sonarr-v5.sh b/ct/sonarr-v5.sh
index 608ce7181..f7f6d4b3c 100644
--- a/ct/sonarr-v5.sh
+++ b/ct/sonarr-v5.sh
@@ -27,7 +27,7 @@ var_os="debian"
 var_version="11"
 NSAPP=$(echo ${APP,,} | tr -d ' ')
 var_install="${NSAPP}-v5-install"
-timezone=$(timedatectl | grep "Time zone" | awk '{print $3}')
+timezone=$(cat /etc/timezone)
 INTEGER='^[0-9]+$'
 YW=$(echo "\033[33m")
 BL=$(echo "\033[36m")
diff --git a/ct/syncthing-v5.sh b/ct/syncthing-v5.sh
index 4997662aa..780653b1b 100644
--- a/ct/syncthing-v5.sh
+++ b/ct/syncthing-v5.sh
@@ -28,7 +28,7 @@ var_os="debian"
 var_version="11"
 NSAPP=$(echo ${APP,,} | tr -d ' ')
 var_install="${NSAPP}-v5-install"
-timezone=$(timedatectl | grep "Time zone" | awk '{print $3}')
+timezone=$(cat /etc/timezone)
 INTEGER='^[0-9]+$'
 YW=$(echo "\033[33m")
 BL=$(echo "\033[36m")
diff --git a/ct/tdarr-v5.sh b/ct/tdarr-v5.sh
index eb3111121..d15c5de08 100644
--- a/ct/tdarr-v5.sh
+++ b/ct/tdarr-v5.sh
@@ -27,7 +27,7 @@ var_os="debian"
 var_version="11"
 NSAPP=$(echo ${APP,,} | tr -d ' ')
 var_install="${NSAPP}-v5-install"
-timezone=$(timedatectl | grep "Time zone" | awk '{print $3}')
+timezone=$(cat /etc/timezone)
 INTEGER='^[0-9]+$'
 YW=$(echo "\033[33m")
 BL=$(echo "\033[36m")
diff --git a/ct/technitiumdns-v5.sh b/ct/technitiumdns-v5.sh
index e05f3be3a..6927ee63f 100644
--- a/ct/technitiumdns-v5.sh
+++ b/ct/technitiumdns-v5.sh
@@ -27,7 +27,7 @@ var_os="debian"
 var_version="11"
 NSAPP=$(echo ${APP,,} | tr -d ' ')
 var_install="${NSAPP}-v5-install"
-timezone=$(timedatectl | grep "Time zone" | awk '{print $3}')
+timezone=$(cat /etc/timezone)
 INTEGER='^[0-9]+$'
 YW=$(echo "\033[33m")
 BL=$(echo "\033[36m")
diff --git a/ct/transmission-v5.sh b/ct/transmission-v5.sh
index b1f3aab6a..a7aad0ce1 100644
--- a/ct/transmission-v5.sh
+++ b/ct/transmission-v5.sh
@@ -27,7 +27,7 @@ var_os="debian"
 var_version="11"
 NSAPP=$(echo ${APP,,} | tr -d ' ')
 var_install="${NSAPP}-v5-install"
-timezone=$(timedatectl | grep "Time zone" | awk '{print $3}')
+timezone=$(cat /etc/timezone)
 INTEGER='^[0-9]+$'
 YW=$(echo "\033[33m")
 BL=$(echo "\033[36m")
diff --git a/ct/trilium-v5.sh b/ct/trilium-v5.sh
index 28b04449f..688a2a60a 100644
--- a/ct/trilium-v5.sh
+++ b/ct/trilium-v5.sh
@@ -27,7 +27,7 @@ var_os="debian"
 var_version="11"
 NSAPP=$(echo ${APP,,} | tr -d ' ')
 var_install="${NSAPP}-v5-install"
-timezone=$(timedatectl | grep "Time zone" | awk '{print $3}')
+timezone=$(cat /etc/timezone)
 INTEGER='^[0-9]+$'
 YW=$(echo "\033[33m")
 BL=$(echo "\033[36m")
diff --git a/ct/ubuntu-v5.sh b/ct/ubuntu-v5.sh
index 7319b8f22..3a07a06bb 100644
--- a/ct/ubuntu-v5.sh
+++ b/ct/ubuntu-v5.sh
@@ -27,7 +27,7 @@ var_os="ubuntu"
 var_version="22.04"
 NSAPP=$(echo ${APP,,} | tr -d ' ')
 var_install="${NSAPP}-v5-install"
-timezone=$(timedatectl | grep "Time zone" | awk '{print $3}')
+timezone=$(cat /etc/timezone)
 INTEGER='^[0-9]+$'
 YW=$(echo "\033[33m")
 BL=$(echo "\033[36m")
diff --git a/ct/umbrel-v5.sh b/ct/umbrel-v5.sh
index c45af0b56..6adff888a 100644
--- a/ct/umbrel-v5.sh
+++ b/ct/umbrel-v5.sh
@@ -27,7 +27,7 @@ var_os="debian"
 var_version="11"
 NSAPP=$(echo ${APP,,} | tr -d ' ')
 var_install="${NSAPP}-v5-install"
-timezone=$(timedatectl | grep "Time zone" | awk '{print $3}')
+timezone=$(cat /etc/timezone)
 INTEGER='^[0-9]+$'
 YW=$(echo "\033[33m")
 BL=$(echo "\033[36m")
diff --git a/ct/unifi-v5.sh b/ct/unifi-v5.sh
index b91ad8c28..2b2995293 100644
--- a/ct/unifi-v5.sh
+++ b/ct/unifi-v5.sh
@@ -27,7 +27,7 @@ var_os="debian"
 var_version="11"
 NSAPP=$(echo ${APP,,} | tr -d ' ')
 var_install="${NSAPP}-v5-install"
-timezone=$(timedatectl | grep "Time zone" | awk '{print $3}')
+timezone=$(cat /etc/timezone)
 INTEGER='^[0-9]+$'
 YW=$(echo "\033[33m")
 BL=$(echo "\033[36m")
diff --git a/ct/uptimekuma-v5.sh b/ct/uptimekuma-v5.sh
index 7659983d7..ad5cc7247 100644
--- a/ct/uptimekuma-v5.sh
+++ b/ct/uptimekuma-v5.sh
@@ -28,7 +28,7 @@ var_os="debian"
 var_version="11"
 NSAPP=$(echo ${APP,,} | tr -d ' ')
 var_install="${NSAPP}-v5-install"
-timezone=$(timedatectl | grep "Time zone" | awk '{print $3}')
+timezone=$(cat /etc/timezone)
 INTEGER='^[0-9]+$'
 YW=$(echo "\033[33m")
 BL=$(echo "\033[36m")
diff --git a/ct/vaultwarden-v5.sh b/ct/vaultwarden-v5.sh
index 135bbe1b0..055e893df 100644
--- a/ct/vaultwarden-v5.sh
+++ b/ct/vaultwarden-v5.sh
@@ -27,7 +27,7 @@ var_os="debian"
 var_version="11"
 NSAPP=$(echo ${APP,,} | tr -d ' ')
 var_install="${NSAPP}-v5-install"
-timezone=$(timedatectl | grep "Time zone" | awk '{print $3}')
+timezone=$(cat /etc/timezone)
 INTEGER='^[0-9]+$'
 YW=$(echo "\033[33m")
 BL=$(echo "\033[36m")
diff --git a/ct/whisparr-v5.sh b/ct/whisparr-v5.sh
index a31ac0051..1f51216cd 100644
--- a/ct/whisparr-v5.sh
+++ b/ct/whisparr-v5.sh
@@ -28,7 +28,7 @@ var_os="debian"
 var_version="11"
 NSAPP=$(echo ${APP,,} | tr -d ' ')
 var_install="${NSAPP}-v5-install"
-timezone=$(timedatectl | grep "Time zone" | awk '{print $3}')
+timezone=$(cat /etc/timezone)
 INTEGER='^[0-9]+$'
 YW=$(echo "\033[33m")
 BL=$(echo "\033[36m")
diff --git a/ct/whoogle-v5.sh b/ct/whoogle-v5.sh
index 4058cbe15..93fc469b5 100644
--- a/ct/whoogle-v5.sh
+++ b/ct/whoogle-v5.sh
@@ -27,7 +27,7 @@ var_os="debian"
 var_version="11"
 NSAPP=$(echo ${APP,,} | tr -d ' ')
 var_install="${NSAPP}-v5-install"
-timezone=$(timedatectl | grep "Time zone" | awk '{print $3}')
+timezone=$(cat /etc/timezone)
 INTEGER='^[0-9]+$'
 YW=$(echo "\033[33m")
 BL=$(echo "\033[36m")
diff --git a/ct/wikijs-v5.sh b/ct/wikijs-v5.sh
index 50da63bd9..685f8783a 100644
--- a/ct/wikijs-v5.sh
+++ b/ct/wikijs-v5.sh
@@ -28,7 +28,7 @@ var_os="debian"
 var_version="11"
 NSAPP=$(echo ${APP,,} | tr -d ' ')
 var_install="${NSAPP}-v5-install"
-timezone=$(timedatectl | grep "Time zone" | awk '{print $3}')
+timezone=$(cat /etc/timezone)
 INTEGER='^[0-9]+$'
 YW=$(echo "\033[33m")
 BL=$(echo "\033[36m")
diff --git a/ct/wireguard-v5.sh b/ct/wireguard-v5.sh
index 4522791f0..cc16fabdd 100644
--- a/ct/wireguard-v5.sh
+++ b/ct/wireguard-v5.sh
@@ -27,7 +27,7 @@ var_os="debian"
 var_version="11"
 NSAPP=$(echo ${APP,,} | tr -d ' ')
 var_install="${NSAPP}-v5-install"
-timezone=$(timedatectl | grep "Time zone" | awk '{print $3}')
+timezone=$(cat /etc/timezone)
 INTEGER='^[0-9]+$'
 YW=$(echo "\033[33m")
 BL=$(echo "\033[36m")
diff --git a/ct/yunohost-v5.sh b/ct/yunohost-v5.sh
index bf8f1798f..526291307 100644
--- a/ct/yunohost-v5.sh
+++ b/ct/yunohost-v5.sh
@@ -27,7 +27,7 @@ var_os="debian"
 var_version="11"
 NSAPP=$(echo ${APP,,} | tr -d ' ')
 var_install="${NSAPP}-v5-install"
-timezone=$(timedatectl | grep "Time zone" | awk '{print $3}')
+timezone=$(cat /etc/timezone)
 INTEGER='^[0-9]+$'
 YW=$(echo "\033[33m")
 BL=$(echo "\033[36m")
diff --git a/ct/zigbee2mqtt-v5.sh b/ct/zigbee2mqtt-v5.sh
index 460c4980b..53543482d 100644
--- a/ct/zigbee2mqtt-v5.sh
+++ b/ct/zigbee2mqtt-v5.sh
@@ -28,7 +28,7 @@ var_os="debian"
 var_version="11"
 NSAPP=$(echo ${APP,,} | tr -d ' ')
 var_install="${NSAPP}-v5-install"
-timezone=$(timedatectl | grep "Time zone" | awk '{print $3}')
+timezone=$(cat /etc/timezone)
 INTEGER='^[0-9]+$'
 YW=$(echo "\033[33m")
 BL=$(echo "\033[36m")
diff --git a/ct/zwave-js-ui-v5.sh b/ct/zwave-js-ui-v5.sh
index 23e88c382..510cb5fcf 100644
--- a/ct/zwave-js-ui-v5.sh
+++ b/ct/zwave-js-ui-v5.sh
@@ -27,7 +27,7 @@ var_os="debian"
 var_version="11"
 NSAPP=$(echo ${APP,,} | tr -d ' ')
 var_install="${NSAPP}-v5-install"
-timezone=$(timedatectl | grep "Time zone" | awk '{print $3}')
+timezone=$(cat /etc/timezone)
 INTEGER='^[0-9]+$'
 YW=$(echo "\033[33m")
 BL=$(echo "\033[36m")
diff --git a/install/adguard-v5-install.sh b/install/adguard-v5-install.sh
index ac6bf8fde..ddb9f4bc1 100644
--- a/install/adguard-v5-install.sh
+++ b/install/adguard-v5-install.sh
@@ -47,7 +47,8 @@ function msg_error() {
 msg_info "Setting up Container OS "
 sed -i "/$LANG/ s/\(^# \)//" /etc/locale.gen
 locale-gen >/dev/null
-timedatectl set-timezone $tz
+echo $tz > /etc/timezone
+ln -sf /usr/share/zoneinfo/$tz /etc/localtime
 for ((i=RETRY_NUM; i>0; i--)); do
   if [ "$(hostname -I)" != "" ]; then
     break
diff --git a/install/audiobookshelf-v5-install.sh b/install/audiobookshelf-v5-install.sh
index c24e600cd..c13f57e89 100644
--- a/install/audiobookshelf-v5-install.sh
+++ b/install/audiobookshelf-v5-install.sh
@@ -46,7 +46,8 @@ function msg_error() {
 msg_info "Setting up Container OS"
 sed -i "/$LANG/ s/\(^# \)//" /etc/locale.gen
 locale-gen >/dev/null
-timedatectl set-timezone $tz
+echo $tz > /etc/timezone
+ln -sf /usr/share/zoneinfo/$tz /etc/localtime
 for ((i=RETRY_NUM; i>0; i--)); do
   if [ "$(hostname -I)" != "" ]; then
     break
diff --git a/install/autobrr-v5-install.sh b/install/autobrr-v5-install.sh
index 7446e75ea..5b7e9d520 100644
--- a/install/autobrr-v5-install.sh
+++ b/install/autobrr-v5-install.sh
@@ -46,7 +46,8 @@ function msg_error() {
 msg_info "Setting up Container OS"
 sed -i "/$LANG/ s/\(^# \)//" /etc/locale.gen
 locale-gen >/dev/null
-timedatectl set-timezone $tz
+echo $tz > /etc/timezone
+ln -sf /usr/share/zoneinfo/$tz /etc/localtime
 for ((i=RETRY_NUM; i>0; i--)); do
   if [ "$(hostname -I)" != "" ]; then
     break
diff --git a/install/blocky-v5-install.sh b/install/blocky-v5-install.sh
index 275f5e09b..70788fde1 100644
--- a/install/blocky-v5-install.sh
+++ b/install/blocky-v5-install.sh
@@ -46,7 +46,8 @@ function msg_error() {
 msg_info "Setting up Container OS "
 sed -i "/$LANG/ s/\(^# \)//" /etc/locale.gen
 locale-gen >/dev/null
-timedatectl set-timezone $tz
+echo $tz > /etc/timezone
+ln -sf /usr/share/zoneinfo/$tz /etc/localtime
 for ((i=RETRY_NUM; i>0; i--)); do
   if [ "$(hostname -I)" != "" ]; then
     break
diff --git a/install/casaos-v5-install.sh b/install/casaos-v5-install.sh
index efda281c4..f94c4b348 100644
--- a/install/casaos-v5-install.sh
+++ b/install/casaos-v5-install.sh
@@ -47,7 +47,8 @@ function msg_error() {
 msg_info "Setting up Container OS "
 sed -i "/$LANG/ s/\(^# \)//" /etc/locale.gen
 locale-gen >/dev/null
-timedatectl set-timezone $tz
+echo $tz > /etc/timezone
+ln -sf /usr/share/zoneinfo/$tz /etc/localtime
 for ((i=RETRY_NUM; i>0; i--)); do
   if [ "$(hostname -I)" != "" ]; then
     break
diff --git a/install/changedetection-v5-install.sh b/install/changedetection-v5-install.sh
index a400759a9..328231613 100644
--- a/install/changedetection-v5-install.sh
+++ b/install/changedetection-v5-install.sh
@@ -46,7 +46,8 @@ function msg_error() {
 msg_info "Setting up Container OS"
 sed -i "/$LANG/ s/\(^# \)//" /etc/locale.gen
 locale-gen >/dev/null
-timedatectl set-timezone $tz
+echo $tz > /etc/timezone
+ln -sf /usr/share/zoneinfo/$tz /etc/localtime
 for ((i=RETRY_NUM; i>0; i--)); do
   if [ "$(hostname -I)" != "" ]; then
     break
diff --git a/install/cronicle-v5-install.sh b/install/cronicle-v5-install.sh
index daba7eb75..63f13711c 100644
--- a/install/cronicle-v5-install.sh
+++ b/install/cronicle-v5-install.sh
@@ -46,7 +46,8 @@ function msg_error() {
 msg_info "Setting up Container OS"
 sed -i "/$LANG/ s/\(^# \)//" /etc/locale.gen
 locale-gen >/dev/null
-timedatectl set-timezone $tz
+echo $tz > /etc/timezone
+ln -sf /usr/share/zoneinfo/$tz /etc/localtime
 for ((i=RETRY_NUM; i>0; i--)); do
   if [ "$(hostname -I)" != "" ]; then
     break
diff --git a/install/daemonsync-v5-install.sh b/install/daemonsync-v5-install.sh
index f92e786ce..87b1bf687 100644
--- a/install/daemonsync-v5-install.sh
+++ b/install/daemonsync-v5-install.sh
@@ -47,7 +47,8 @@ function msg_error() {
 msg_info "Setting up Container OS "
 sed -i "/$LANG/ s/\(^# \)//" /etc/locale.gen
 locale-gen >/dev/null
-timedatectl set-timezone $tz
+echo $tz > /etc/timezone
+ln -sf /usr/share/zoneinfo/$tz /etc/localtime
 for ((i=RETRY_NUM; i>0; i--)); do
   if [ "$(hostname -I)" != "" ]; then
     break
diff --git a/install/dashy-v5-install.sh b/install/dashy-v5-install.sh
index cec3a16f5..0835c349d 100644
--- a/install/dashy-v5-install.sh
+++ b/install/dashy-v5-install.sh
@@ -47,7 +47,8 @@ function msg_error() {
 msg_info "Setting up Container OS "
 sed -i "/$LANG/ s/\(^# \)//" /etc/locale.gen
 locale-gen >/dev/null
-timedatectl set-timezone $tz
+echo $tz > /etc/timezone
+ln -sf /usr/share/zoneinfo/$tz /etc/localtime
 for ((i=RETRY_NUM; i>0; i--)); do
   if [ "$(hostname -I)" != "" ]; then
     break
diff --git a/install/debian-v5-install.sh b/install/debian-v5-install.sh
index 53f5a8752..8d8c09e09 100644
--- a/install/debian-v5-install.sh
+++ b/install/debian-v5-install.sh
@@ -46,7 +46,8 @@ function msg_error() {
 msg_info "Setting up Container OS"
 sed -i "/$LANG/ s/\(^# \)//" /etc/locale.gen
 locale-gen >/dev/null
-timedatectl set-timezone $tz
+echo $tz > /etc/timezone
+ln -sf /usr/share/zoneinfo/$tz /etc/localtime
 for ((i=RETRY_NUM; i>0; i--)); do
   if [ "$(hostname -I)" != "" ]; then
     break
diff --git a/install/deconz-v5-install.sh b/install/deconz-v5-install.sh
index bdef4d6cb..391c2857b 100644
--- a/install/deconz-v5-install.sh
+++ b/install/deconz-v5-install.sh
@@ -47,7 +47,8 @@ function msg_error() {
 msg_info "Setting up Container OS "
 sed -i "/$LANG/ s/\(^# \)//" /etc/locale.gen
 locale-gen >/dev/null
-timedatectl set-timezone $tz
+echo $tz > /etc/timezone
+ln -sf /usr/share/zoneinfo/$tz /etc/localtime
 for ((i=RETRY_NUM; i>0; i--)); do
   if [ "$(hostname -I)" != "" ]; then
     break
diff --git a/install/deluge-v5-install.sh b/install/deluge-v5-install.sh
index 42325e533..fcfb590d9 100644
--- a/install/deluge-v5-install.sh
+++ b/install/deluge-v5-install.sh
@@ -46,7 +46,8 @@ function msg_error() {
 msg_info "Setting up Container OS"
 sed -i "/$LANG/ s/\(^# \)//" /etc/locale.gen
 locale-gen >/dev/null
-timedatectl set-timezone $tz
+echo $tz > /etc/timezone
+ln -sf /usr/share/zoneinfo/$tz /etc/localtime
 for ((i=RETRY_NUM; i>0; i--)); do
   if [ "$(hostname -I)" != "" ]; then
     break
diff --git a/install/docker-v5-install.sh b/install/docker-v5-install.sh
index 906534e22..4a50c10dc 100644
--- a/install/docker-v5-install.sh
+++ b/install/docker-v5-install.sh
@@ -47,7 +47,8 @@ function msg_error() {
 msg_info "Setting up Container OS "
 sed -i "/$LANG/ s/\(^# \)//" /etc/locale.gen
 locale-gen >/dev/null
-timedatectl set-timezone $tz
+echo $tz > /etc/timezone
+ln -sf /usr/share/zoneinfo/$tz /etc/localtime
 for ((i=RETRY_NUM; i>0; i--)); do
   if [ "$(hostname -I)" != "" ]; then
     break
diff --git a/install/emby-v5-install.sh b/install/emby-v5-install.sh
index 41bedf3de..600df6cd5 100644
--- a/install/emby-v5-install.sh
+++ b/install/emby-v5-install.sh
@@ -47,7 +47,8 @@ function msg_error() {
 msg_info "Setting up Container OS "
 sed -i "/$LANG/ s/\(^# \)//" /etc/locale.gen
 locale-gen >/dev/null
-timedatectl set-timezone $tz
+echo $tz > /etc/timezone
+ln -sf /usr/share/zoneinfo/$tz /etc/localtime
 for ((i=RETRY_NUM; i>0; i--)); do
   if [ "$(hostname -I)" != "" ]; then
     break
diff --git a/install/emqx-v5-install.sh b/install/emqx-v5-install.sh
index 8c7917101..0f51f30ca 100644
--- a/install/emqx-v5-install.sh
+++ b/install/emqx-v5-install.sh
@@ -46,7 +46,8 @@ function msg_error() {
 msg_info "Setting up Container OS "
 sed -i "/$LANG/ s/\(^# \)//" /etc/locale.gen
 locale-gen >/dev/null
-timedatectl set-timezone $tz
+echo $tz > /etc/timezone
+ln -sf /usr/share/zoneinfo/$tz /etc/localtime
 for ((i=RETRY_NUM; i>0; i--)); do
   if [ "$(hostname -I)" != "" ]; then
     break
diff --git a/install/esphome-v5-install.sh b/install/esphome-v5-install.sh
index d653ee25a..62d289b74 100644
--- a/install/esphome-v5-install.sh
+++ b/install/esphome-v5-install.sh
@@ -47,7 +47,8 @@ function msg_error() {
 msg_info "Setting up Container OS "
 sed -i "/$LANG/ s/\(^# \)//" /etc/locale.gen
 locale-gen >/dev/null
-timedatectl set-timezone $tz
+echo $tz > /etc/timezone
+ln -sf /usr/share/zoneinfo/$tz /etc/localtime
 for ((i=RETRY_NUM; i>0; i--)); do
   if [ "$(hostname -I)" != "" ]; then
     break
diff --git a/install/go2rtc-v5-install.sh b/install/go2rtc-v5-install.sh
index 51d6831fa..d06fe33c1 100644
--- a/install/go2rtc-v5-install.sh
+++ b/install/go2rtc-v5-install.sh
@@ -46,7 +46,8 @@ function msg_error() {
 msg_info "Setting up Container OS"
 sed -i "/$LANG/ s/\(^# \)//" /etc/locale.gen
 locale-gen >/dev/null
-timedatectl set-timezone $tz
+echo $tz > /etc/timezone
+ln -sf /usr/share/zoneinfo/$tz /etc/localtime
 for ((i=RETRY_NUM; i>0; i--)); do
   if [ "$(hostname -I)" != "" ]; then
     break
diff --git a/install/grafana-v5-install.sh b/install/grafana-v5-install.sh
index f09c81a71..5dc1ed99d 100644
--- a/install/grafana-v5-install.sh
+++ b/install/grafana-v5-install.sh
@@ -47,7 +47,8 @@ function msg_error() {
 msg_info "Setting up Container OS "
 sed -i "/$LANG/ s/\(^# \)//" /etc/locale.gen
 locale-gen >/dev/null
-timedatectl set-timezone $tz
+echo $tz > /etc/timezone
+ln -sf /usr/share/zoneinfo/$tz /etc/localtime
 for ((i=RETRY_NUM; i>0; i--)); do
   if [ "$(hostname -I)" != "" ]; then
     break
diff --git a/install/grocy-v5-install.sh b/install/grocy-v5-install.sh
index 92242165b..adf67d9a7 100644
--- a/install/grocy-v5-install.sh
+++ b/install/grocy-v5-install.sh
@@ -47,7 +47,8 @@ function msg_error() {
 msg_info "Setting up Container OS "
 sed -i "/$LANG/ s/\(^# \)//" /etc/locale.gen
 locale-gen >/dev/null
-timedatectl set-timezone $tz
+echo $tz > /etc/timezone
+ln -sf /usr/share/zoneinfo/$tz /etc/localtime
 for ((i=RETRY_NUM; i>0; i--)); do
   if [ "$(hostname -I)" != "" ]; then
     break
diff --git a/install/heimdalldashboard-v5-install.sh b/install/heimdalldashboard-v5-install.sh
index f287b6873..7f2fa02e9 100644
--- a/install/heimdalldashboard-v5-install.sh
+++ b/install/heimdalldashboard-v5-install.sh
@@ -47,7 +47,8 @@ function msg_error() {
 msg_info "Setting up Container OS "
 sed -i "/$LANG/ s/\(^# \)//" /etc/locale.gen
 locale-gen >/dev/null
-timedatectl set-timezone $tz
+echo $tz > /etc/timezone
+ln -sf /usr/share/zoneinfo/$tz /etc/localtime
 for ((i=RETRY_NUM; i>0; i--)); do
   if [ "$(hostname -I)" != "" ]; then
     break
diff --git a/install/homeassistant-core-v5-install.sh b/install/homeassistant-core-v5-install.sh
index a1190ce0c..614c3576e 100644
--- a/install/homeassistant-core-v5-install.sh
+++ b/install/homeassistant-core-v5-install.sh
@@ -47,7 +47,8 @@ function msg_error() {
 msg_info "Setting up Container OS"
 sed -i "/$LANG/ s/\(^# \)//" /etc/locale.gen
 locale-gen >/dev/null
-timedatectl set-timezone $tz
+echo $tz > /etc/timezone
+ln -sf /usr/share/zoneinfo/$tz /etc/localtime
 for ((i=RETRY_NUM; i>0; i--)); do
   if [ "$(hostname -I)" != "" ]; then
     break
diff --git a/install/homeassistant-v5-install.sh b/install/homeassistant-v5-install.sh
index 5f8fe8433..07c8707af 100644
--- a/install/homeassistant-v5-install.sh
+++ b/install/homeassistant-v5-install.sh
@@ -47,7 +47,8 @@ function msg_error() {
 msg_info "Setting up Container OS "
 sed -i "/$LANG/ s/\(^# \)//" /etc/locale.gen
 locale-gen >/dev/null
-timedatectl set-timezone $tz
+echo $tz > /etc/timezone
+ln -sf /usr/share/zoneinfo/$tz /etc/localtime
 for ((i=RETRY_NUM; i>0; i--)); do
   if [ "$(hostname -I)" != "" ]; then
     break
diff --git a/install/homebridge-v5-install.sh b/install/homebridge-v5-install.sh
index b150c1639..9fda9f34b 100644
--- a/install/homebridge-v5-install.sh
+++ b/install/homebridge-v5-install.sh
@@ -47,7 +47,8 @@ function msg_error() {
 msg_info "Setting up Container OS "
 sed -i "/$LANG/ s/\(^# \)//" /etc/locale.gen
 locale-gen >/dev/null
-timedatectl set-timezone $tz
+echo $tz > /etc/timezone
+ln -sf /usr/share/zoneinfo/$tz /etc/localtime
 for ((i=RETRY_NUM; i>0; i--)); do
   if [ "$(hostname -I)" != "" ]; then
     break
diff --git a/install/homepage-v5-install.sh b/install/homepage-v5-install.sh
index 0b261e03b..8f07e05f1 100644
--- a/install/homepage-v5-install.sh
+++ b/install/homepage-v5-install.sh
@@ -46,7 +46,8 @@ function msg_error() {
 msg_info "Setting up Container OS "
 sed -i "/$LANG/ s/\(^# \)//" /etc/locale.gen
 locale-gen >/dev/null
-timedatectl set-timezone $tz
+echo $tz > /etc/timezone
+ln -sf /usr/share/zoneinfo/$tz /etc/localtime
 for ((i=RETRY_NUM; i>0; i--)); do
   if [ "$(hostname -I)" != "" ]; then
     break
diff --git a/install/homer-v5-install.sh b/install/homer-v5-install.sh
index 23831e785..4b5d77fc1 100644
--- a/install/homer-v5-install.sh
+++ b/install/homer-v5-install.sh
@@ -46,7 +46,8 @@ function msg_error() {
 msg_info "Setting up Container OS"
 sed -i "/$LANG/ s/\(^# \)//" /etc/locale.gen
 locale-gen >/dev/null
-timedatectl set-timezone $tz
+echo $tz > /etc/timezone
+ln -sf /usr/share/zoneinfo/$tz /etc/localtime
 for ((i=RETRY_NUM; i>0; i--)); do
   if [ "$(hostname -I)" != "" ]; then
     break
diff --git a/install/hyperion-v5-install.sh b/install/hyperion-v5-install.sh
index 580817b75..828a56303 100644
--- a/install/hyperion-v5-install.sh
+++ b/install/hyperion-v5-install.sh
@@ -46,7 +46,8 @@ function msg_error() {
 msg_info "Setting up Container OS"
 sed -i "/$LANG/ s/\(^# \)//" /etc/locale.gen
 locale-gen >/dev/null
-timedatectl set-timezone $tz
+echo $tz > /etc/timezone
+ln -sf /usr/share/zoneinfo/$tz /etc/localtime
 for ((i=RETRY_NUM; i>0; i--)); do
   if [ "$(hostname -I)" != "" ]; then
     break
diff --git a/install/influxdb-v5-install.sh b/install/influxdb-v5-install.sh
index 4280456a2..4ef3826e3 100644
--- a/install/influxdb-v5-install.sh
+++ b/install/influxdb-v5-install.sh
@@ -47,7 +47,8 @@ function msg_error() {
 msg_info "Setting up Container OS "
 sed -i "/$LANG/ s/\(^# \)//" /etc/locale.gen
 locale-gen >/dev/null
-timedatectl set-timezone $tz
+echo $tz > /etc/timezone
+ln -sf /usr/share/zoneinfo/$tz /etc/localtime
 for ((i=RETRY_NUM; i>0; i--)); do
   if [ "$(hostname -I)" != "" ]; then
     break
diff --git a/install/iobroker-v5-install.sh b/install/iobroker-v5-install.sh
index 6f9cda96f..b541522f8 100644
--- a/install/iobroker-v5-install.sh
+++ b/install/iobroker-v5-install.sh
@@ -47,7 +47,8 @@ function msg_error() {
 msg_info "Setting up Container OS "
 sed -i "/$LANG/ s/\(^# \)//" /etc/locale.gen
 locale-gen >/dev/null
-timedatectl set-timezone $tz
+echo $tz > /etc/timezone
+ln -sf /usr/share/zoneinfo/$tz /etc/localtime
 for ((i=RETRY_NUM; i>0; i--)); do
   if [ "$(hostname -I)" != "" ]; then
     break
diff --git a/install/jackett-v5-install.sh b/install/jackett-v5-install.sh
index 9f257f5b0..711b3804d 100644
--- a/install/jackett-v5-install.sh
+++ b/install/jackett-v5-install.sh
@@ -46,7 +46,8 @@ function msg_error() {
 msg_info "Setting up Container OS"
 sed -i "/$LANG/ s/\(^# \)//" /etc/locale.gen
 locale-gen >/dev/null
-timedatectl set-timezone $tz
+echo $tz > /etc/timezone
+ln -sf /usr/share/zoneinfo/$tz /etc/localtime
 for ((i=RETRY_NUM; i>0; i--)); do
   if [ "$(hostname -I)" != "" ]; then
     break
diff --git a/install/jellyfin-v5-install.sh b/install/jellyfin-v5-install.sh
index 8faa5d278..7f3667cbe 100644
--- a/install/jellyfin-v5-install.sh
+++ b/install/jellyfin-v5-install.sh
@@ -47,7 +47,8 @@ function msg_error() {
 msg_info "Setting up Container OS "
 sed -i "/$LANG/ s/\(^# \)//" /etc/locale.gen
 locale-gen >/dev/null
-timedatectl set-timezone $tz
+echo $tz > /etc/timezone
+ln -sf /usr/share/zoneinfo/$tz /etc/localtime
 for ((i=RETRY_NUM; i>0; i--)); do
   if [ "$(hostname -I)" != "" ]; then
     break
diff --git a/install/k0s-v5-install.sh b/install/k0s-v5-install.sh
index 138d51cee..9929af370 100644
--- a/install/k0s-v5-install.sh
+++ b/install/k0s-v5-install.sh
@@ -46,7 +46,8 @@ function msg_error() {
 msg_info "Setting up Container OS"
 sed -i "/$LANG/ s/\(^# \)//" /etc/locale.gen
 locale-gen >/dev/null
-timedatectl set-timezone $tz
+echo $tz > /etc/timezone
+ln -sf /usr/share/zoneinfo/$tz /etc/localtime
 for ((i=RETRY_NUM; i>0; i--)); do
   if [ "$(hostname -I)" != "" ]; then
     break
diff --git a/install/kavita-v5-install.sh b/install/kavita-v5-install.sh
index 76fdf021a..2bafec403 100644
--- a/install/kavita-v5-install.sh
+++ b/install/kavita-v5-install.sh
@@ -47,7 +47,8 @@ function msg_error() {
 msg_info "Setting up Container OS"
 sed -i "/$LANG/ s/\(^# \)//" /etc/locale.gen
 locale-gen >/dev/null
-timedatectl set-timezone $tz
+echo $tz > /etc/timezone
+ln -sf /usr/share/zoneinfo/$tz /etc/localtime
 for ((i=RETRY_NUM; i>0; i--)); do
   if [ "$(hostname -I)" != "" ]; then
     break
diff --git a/install/keycloak-v5-install.sh b/install/keycloak-v5-install.sh
index 6858e15b9..33c4e567e 100644
--- a/install/keycloak-v5-install.sh
+++ b/install/keycloak-v5-install.sh
@@ -47,7 +47,8 @@ function msg_error() {
 msg_info "Setting up Container OS "
 sed -i "/$LANG/ s/\(^# \)//" /etc/locale.gen
 locale-gen >/dev/null
-timedatectl set-timezone $tz
+echo $tz > /etc/timezone
+ln -sf /usr/share/zoneinfo/$tz /etc/localtime
 for ((i=RETRY_NUM; i>0; i--)); do
   if [ "$(hostname -I)" != "" ]; then
     break
diff --git a/install/lidarr-v5-install.sh b/install/lidarr-v5-install.sh
index aa990c170..fb5c11590 100644
--- a/install/lidarr-v5-install.sh
+++ b/install/lidarr-v5-install.sh
@@ -46,7 +46,8 @@ function msg_error() {
 msg_info "Setting up Container OS"
 sed -i "/$LANG/ s/\(^# \)//" /etc/locale.gen
 locale-gen >/dev/null
-timedatectl set-timezone $tz
+echo $tz > /etc/timezone
+ln -sf /usr/share/zoneinfo/$tz /etc/localtime
 for ((i=RETRY_NUM; i>0; i--)); do
   if [ "$(hostname -I)" != "" ]; then
     break
diff --git a/install/magicmirror-v5-install.sh b/install/magicmirror-v5-install.sh
index 3dbaf0a6f..e46fb200d 100644
--- a/install/magicmirror-v5-install.sh
+++ b/install/magicmirror-v5-install.sh
@@ -47,7 +47,8 @@ function msg_error() {
 msg_info "Setting up Container OS "
 sed -i "/$LANG/ s/\(^# \)//" /etc/locale.gen
 locale-gen >/dev/null
-timedatectl set-timezone $tz
+echo $tz > /etc/timezone
+ln -sf /usr/share/zoneinfo/$tz /etc/localtime
 for ((i=RETRY_NUM; i>0; i--)); do
   if [ "$(hostname -I)" != "" ]; then
     break
diff --git a/install/mariadb-v5-install.sh b/install/mariadb-v5-install.sh
index db5eb1649..58031075d 100644
--- a/install/mariadb-v5-install.sh
+++ b/install/mariadb-v5-install.sh
@@ -47,7 +47,8 @@ function msg_error() {
 msg_info "Setting up Container OS "
 sed -i "/$LANG/ s/\(^# \)//" /etc/locale.gen
 locale-gen >/dev/null
-timedatectl set-timezone $tz
+echo $tz > /etc/timezone
+ln -sf /usr/share/zoneinfo/$tz /etc/localtime
 for ((i=RETRY_NUM; i>0; i--)); do
   if [ "$(hostname -I)" != "" ]; then
     break
diff --git a/install/meshcentral-v5-install.sh b/install/meshcentral-v5-install.sh
index 7861a8fd6..850843303 100644
--- a/install/meshcentral-v5-install.sh
+++ b/install/meshcentral-v5-install.sh
@@ -47,7 +47,8 @@ function msg_error() {
 msg_info "Setting up Container OS "
 sed -i "/$LANG/ s/\(^# \)//" /etc/locale.gen
 locale-gen >/dev/null
-timedatectl set-timezone $tz
+echo $tz > /etc/timezone
+ln -sf /usr/share/zoneinfo/$tz /etc/localtime
 for ((i=RETRY_NUM; i>0; i--)); do
   if [ "$(hostname -I)" != "" ]; then
     break
diff --git a/install/motioneye-v5-install.sh b/install/motioneye-v5-install.sh
index f112d854e..83cbd1c06 100644
--- a/install/motioneye-v5-install.sh
+++ b/install/motioneye-v5-install.sh
@@ -47,7 +47,8 @@ function msg_error() {
 msg_info "Setting up Container OS "
 sed -i "/$LANG/ s/\(^# \)//" /etc/locale.gen
 locale-gen >/dev/null
-timedatectl set-timezone $tz
+echo $tz > /etc/timezone
+ln -sf /usr/share/zoneinfo/$tz /etc/localtime
 for ((i=RETRY_NUM; i>0; i--)); do
   if [ "$(hostname -I)" != "" ]; then
     break
diff --git a/install/mqtt-v5-install.sh b/install/mqtt-v5-install.sh
index 3be1d8a06..9e35158fb 100644
--- a/install/mqtt-v5-install.sh
+++ b/install/mqtt-v5-install.sh
@@ -47,7 +47,8 @@ function msg_error() {
 msg_info "Setting up Container OS "
 sed -i "/$LANG/ s/\(^# \)//" /etc/locale.gen
 locale-gen >/dev/null
-timedatectl set-timezone $tz
+echo $tz > /etc/timezone
+ln -sf /usr/share/zoneinfo/$tz /etc/localtime
 for ((i=RETRY_NUM; i>0; i--)); do
   if [ "$(hostname -I)" != "" ]; then
     break
diff --git a/install/n8n-v5-install.sh b/install/n8n-v5-install.sh
index fbafc2db0..60481d2af 100644
--- a/install/n8n-v5-install.sh
+++ b/install/n8n-v5-install.sh
@@ -47,7 +47,8 @@ function msg_error() {
 msg_info "Setting up Container OS "
 sed -i "/$LANG/ s/\(^# \)//" /etc/locale.gen
 locale-gen >/dev/null
-timedatectl set-timezone $tz
+echo $tz > /etc/timezone
+ln -sf /usr/share/zoneinfo/$tz /etc/localtime
 for ((i=RETRY_NUM; i>0; i--)); do
   if [ "$(hostname -I)" != "" ]; then
     break
diff --git a/install/navidrome-v5-install.sh b/install/navidrome-v5-install.sh
index c6a7f04e8..a1a136fd0 100644
--- a/install/navidrome-v5-install.sh
+++ b/install/navidrome-v5-install.sh
@@ -46,7 +46,8 @@ function msg_error() {
 msg_info "Setting up Container OS "
 sed -i "/$LANG/ s/\(^# \)//" /etc/locale.gen
 locale-gen >/dev/null
-timedatectl set-timezone $tz
+echo $tz > /etc/timezone
+ln -sf /usr/share/zoneinfo/$tz /etc/localtime
 for ((i=RETRY_NUM; i>0; i--)); do
   if [ "$(hostname -I)" != "" ]; then
     break
diff --git a/install/nextcloudpi-v5-install.sh b/install/nextcloudpi-v5-install.sh
index 8d25928aa..5382bf007 100644
--- a/install/nextcloudpi-v5-install.sh
+++ b/install/nextcloudpi-v5-install.sh
@@ -46,7 +46,8 @@ function msg_error() {
 msg_info "Setting up Container OS "
 sed -i "/$LANG/ s/\(^# \)//" /etc/locale.gen
 locale-gen >/dev/null
-timedatectl set-timezone $tz
+echo $tz > /etc/timezone
+ln -sf /usr/share/zoneinfo/$tz /etc/localtime
 for ((i=RETRY_NUM; i>0; i--)); do
   if [ "$(hostname -I)" != "" ]; then
     break
diff --git a/install/nginxproxymanager-v5-install.sh b/install/nginxproxymanager-v5-install.sh
index 960bb71f1..ce7e2cb44 100644
--- a/install/nginxproxymanager-v5-install.sh
+++ b/install/nginxproxymanager-v5-install.sh
@@ -47,7 +47,8 @@ function msg_error() {
 msg_info "Setting up Container OS "
 sed -i "/$LANG/ s/\(^# \)//" /etc/locale.gen
 locale-gen >/dev/null
-timedatectl set-timezone $tz
+echo $tz > /etc/timezone
+ln -sf /usr/share/zoneinfo/$tz /etc/localtime
 for ((i=RETRY_NUM; i>0; i--)); do
   if [ "$(hostname -I)" != "" ]; then
     break
diff --git a/install/nocodb-v5-install.sh b/install/nocodb-v5-install.sh
index 270436a80..b2a77d133 100644
--- a/install/nocodb-v5-install.sh
+++ b/install/nocodb-v5-install.sh
@@ -47,7 +47,8 @@ function msg_error() {
 msg_info "Setting up Container OS "
 sed -i "/$LANG/ s/\(^# \)//" /etc/locale.gen
 locale-gen >/dev/null
-timedatectl set-timezone $tz
+echo $tz > /etc/timezone
+ln -sf /usr/share/zoneinfo/$tz /etc/localtime
 for ((i=RETRY_NUM; i>0; i--)); do
   if [ "$(hostname -I)" != "" ]; then
     break
diff --git a/install/node-red-v5-install.sh b/install/node-red-v5-install.sh
index fcc4c3711..a84378818 100644
--- a/install/node-red-v5-install.sh
+++ b/install/node-red-v5-install.sh
@@ -47,7 +47,8 @@ function msg_error() {
 msg_info "Setting up Container OS "
 sed -i "/$LANG/ s/\(^# \)//" /etc/locale.gen
 locale-gen >/dev/null
-timedatectl set-timezone $tz
+echo $tz > /etc/timezone
+ln -sf /usr/share/zoneinfo/$tz /etc/localtime
 for ((i=RETRY_NUM; i>0; i--)); do
   if [ "$(hostname -I)" != "" ]; then
     break
diff --git a/install/omada-v5-install.sh b/install/omada-v5-install.sh
index ad68dec6b..e7e388783 100644
--- a/install/omada-v5-install.sh
+++ b/install/omada-v5-install.sh
@@ -47,7 +47,8 @@ function msg_error() {
 msg_info "Setting up Container OS "
 sed -i "/$LANG/ s/\(^# \)//" /etc/locale.gen
 locale-gen >/dev/null
-timedatectl set-timezone $tz
+echo $tz > /etc/timezone
+ln -sf /usr/share/zoneinfo/$tz /etc/localtime
 for ((i=RETRY_NUM; i>0; i--)); do
   if [ "$(hostname -I)" != "" ]; then
     break
diff --git a/install/omv-v5-install.sh b/install/omv-v5-install.sh
index d9169e751..55aa1f09c 100644
--- a/install/omv-v5-install.sh
+++ b/install/omv-v5-install.sh
@@ -47,7 +47,8 @@ function msg_error() {
 msg_info "Setting up Container OS "
 sed -i "/$LANG/ s/\(^# \)//" /etc/locale.gen
 locale-gen >/dev/null
-timedatectl set-timezone $tz
+echo $tz > /etc/timezone
+ln -sf /usr/share/zoneinfo/$tz /etc/localtime
 for ((i=RETRY_NUM; i>0; i--)); do
   if [ "$(hostname -I)" != "" ]; then
     break
diff --git a/install/openhab-v5-install.sh b/install/openhab-v5-install.sh
index 30b9f61db..74372081d 100644
--- a/install/openhab-v5-install.sh
+++ b/install/openhab-v5-install.sh
@@ -47,7 +47,8 @@ function msg_error() {
 msg_info "Setting up Container OS "
 sed -i "/$LANG/ s/\(^# \)//" /etc/locale.gen
 locale-gen >/dev/null
-timedatectl set-timezone $tz
+echo $tz > /etc/timezone
+ln -sf /usr/share/zoneinfo/$tz /etc/localtime
 for ((i=RETRY_NUM; i>0; i--)); do
   if [ "$(hostname -I)" != "" ]; then
     break
diff --git a/install/paperless-ngx-v5-install.sh b/install/paperless-ngx-v5-install.sh
index c48908f25..6e7e3e49b 100644
--- a/install/paperless-ngx-v5-install.sh
+++ b/install/paperless-ngx-v5-install.sh
@@ -47,7 +47,8 @@ function msg_error() {
 msg_info "Setting up Container OS "
 sed -i "/$LANG/ s/\(^# \)//" /etc/locale.gen
 locale-gen >/dev/null
-timedatectl set-timezone $tz
+echo $tz > /etc/timezone
+ln -sf /usr/share/zoneinfo/$tz /etc/localtime
 for ((i=RETRY_NUM; i>0; i--)); do
   if [ "$(hostname -I)" != "" ]; then
     break
diff --git a/install/photoprism-v5-install.sh b/install/photoprism-v5-install.sh
index b9c0782f1..a51074ebe 100644
--- a/install/photoprism-v5-install.sh
+++ b/install/photoprism-v5-install.sh
@@ -47,7 +47,8 @@ function msg_error() {
 msg_info "Setting up Container OS "
 sed -i "/$LANG/ s/\(^# \)//" /etc/locale.gen
 locale-gen >/dev/null
-timedatectl set-timezone $tz
+echo $tz > /etc/timezone
+ln -sf /usr/share/zoneinfo/$tz /etc/localtime
 for ((i=RETRY_NUM; i>0; i--)); do
   if [ "$(hostname -I)" != "" ]; then
     break
diff --git a/install/pihole-v5-install.sh b/install/pihole-v5-install.sh
index 5976ac9eb..6e25aea0e 100644
--- a/install/pihole-v5-install.sh
+++ b/install/pihole-v5-install.sh
@@ -48,7 +48,8 @@ function msg_error() {
 msg_info "Setting up Container OS "
 sed -i "/$LANG/ s/\(^# \)//" /etc/locale.gen
 locale-gen >/dev/null
-timedatectl set-timezone $tz
+echo $tz > /etc/timezone
+ln -sf /usr/share/zoneinfo/$tz /etc/localtime
 for ((i=RETRY_NUM; i>0; i--)); do
   if [ "$(hostname -I)" != "" ]; then
     break
diff --git a/install/plex-v5-install.sh b/install/plex-v5-install.sh
index b15b104c1..701636a20 100644
--- a/install/plex-v5-install.sh
+++ b/install/plex-v5-install.sh
@@ -47,7 +47,8 @@ function msg_error() {
 msg_info "Setting up Container OS "
 sed -i "/$LANG/ s/\(^# \)//" /etc/locale.gen
 locale-gen >/dev/null
-timedatectl set-timezone $tz
+echo $tz > /etc/timezone
+ln -sf /usr/share/zoneinfo/$tz /etc/localtime
 for ((i=RETRY_NUM; i>0; i--)); do
   if [ "$(hostname -I)" != "" ]; then
     break
diff --git a/install/podman-homeassistant-v5-install.sh b/install/podman-homeassistant-v5-install.sh
index 599187247..028781141 100644
--- a/install/podman-homeassistant-v5-install.sh
+++ b/install/podman-homeassistant-v5-install.sh
@@ -47,7 +47,8 @@ function msg_error() {
 msg_info "Setting up Container OS "
 sed -i "/$LANG/ s/\(^# \)//" /etc/locale.gen
 locale-gen >/dev/null
-timedatectl set-timezone $tz
+echo $tz > /etc/timezone
+ln -sf /usr/share/zoneinfo/$tz /etc/localtime
 for ((i=RETRY_NUM; i>0; i--)); do
   if [ "$(hostname -I)" != "" ]; then
     break
diff --git a/install/podman-v5-install.sh b/install/podman-v5-install.sh
index 89114abaf..b551de69d 100644
--- a/install/podman-v5-install.sh
+++ b/install/podman-v5-install.sh
@@ -46,7 +46,8 @@ function msg_error() {
 msg_info "Setting up Container OS"
 sed -i "/$LANG/ s/\(^# \)//" /etc/locale.gen
 locale-gen >/dev/null
-timedatectl set-timezone $tz
+echo $tz > /etc/timezone
+ln -sf /usr/share/zoneinfo/$tz /etc/localtime
 for ((i=RETRY_NUM; i>0; i--)); do
   if [ "$(hostname -I)" != "" ]; then
     break
diff --git a/install/postgresql-v5-install.sh b/install/postgresql-v5-install.sh
index 3c98caef5..6ac71f6e8 100644
--- a/install/postgresql-v5-install.sh
+++ b/install/postgresql-v5-install.sh
@@ -47,7 +47,8 @@ function msg_error() {
 msg_info "Setting up Container OS "
 sed -i "/$LANG/ s/\(^# \)//" /etc/locale.gen
 locale-gen >/dev/null
-timedatectl set-timezone $tz
+echo $tz > /etc/timezone
+ln -sf /usr/share/zoneinfo/$tz /etc/localtime
 for ((i=RETRY_NUM; i>0; i--)); do
   if [ "$(hostname -I)" != "" ]; then
     break
diff --git a/install/prometheus-v5-install.sh b/install/prometheus-v5-install.sh
index 36ad41fc1..35434a3a3 100644
--- a/install/prometheus-v5-install.sh
+++ b/install/prometheus-v5-install.sh
@@ -47,7 +47,8 @@ function msg_error() {
 msg_info "Setting up Container OS "
 sed -i "/$LANG/ s/\(^# \)//" /etc/locale.gen
 locale-gen >/dev/null
-timedatectl set-timezone $tz
+echo $tz > /etc/timezone
+ln -sf /usr/share/zoneinfo/$tz /etc/localtime
 for ((i=RETRY_NUM; i>0; i--)); do
   if [ "$(hostname -I)" != "" ]; then
     break
diff --git a/install/prowlarr-v5-install.sh b/install/prowlarr-v5-install.sh
index 0877c3e92..7d4a80a44 100644
--- a/install/prowlarr-v5-install.sh
+++ b/install/prowlarr-v5-install.sh
@@ -46,7 +46,8 @@ function msg_error() {
 msg_info "Setting up Container OS"
 sed -i "/$LANG/ s/\(^# \)//" /etc/locale.gen
 locale-gen >/dev/null
-timedatectl set-timezone $tz
+echo $tz > /etc/timezone
+ln -sf /usr/share/zoneinfo/$tz /etc/localtime
 for ((i=RETRY_NUM; i>0; i--)); do
   if [ "$(hostname -I)" != "" ]; then
     break
diff --git a/install/qbittorrent-v5-install.sh b/install/qbittorrent-v5-install.sh
index 7569b0fd5..955125444 100644
--- a/install/qbittorrent-v5-install.sh
+++ b/install/qbittorrent-v5-install.sh
@@ -46,7 +46,8 @@ function msg_error() {
 msg_info "Setting up Container OS"
 sed -i "/$LANG/ s/\(^# \)//" /etc/locale.gen
 locale-gen >/dev/null
-timedatectl set-timezone $tz
+echo $tz > /etc/timezone
+ln -sf /usr/share/zoneinfo/$tz /etc/localtime
 for ((i=RETRY_NUM; i>0; i--)); do
   if [ "$(hostname -I)" != "" ]; then
     break
diff --git a/install/radarr-v5-install.sh b/install/radarr-v5-install.sh
index 7344a4967..6b73dfc48 100644
--- a/install/radarr-v5-install.sh
+++ b/install/radarr-v5-install.sh
@@ -46,7 +46,8 @@ function msg_error() {
 msg_info "Setting up Container OS"
 sed -i "/$LANG/ s/\(^# \)//" /etc/locale.gen
 locale-gen >/dev/null
-timedatectl set-timezone $tz
+echo $tz > /etc/timezone
+ln -sf /usr/share/zoneinfo/$tz /etc/localtime
 for ((i=RETRY_NUM; i>0; i--)); do
   if [ "$(hostname -I)" != "" ]; then
     break
diff --git a/install/readarr-v5-install.sh b/install/readarr-v5-install.sh
index c1fb8f850..d6e2dea2c 100644
--- a/install/readarr-v5-install.sh
+++ b/install/readarr-v5-install.sh
@@ -46,7 +46,8 @@ function msg_error() {
 msg_info "Setting up Container OS"
 sed -i "/$LANG/ s/\(^# \)//" /etc/locale.gen
 locale-gen >/dev/null
-timedatectl set-timezone $tz
+echo $tz > /etc/timezone
+ln -sf /usr/share/zoneinfo/$tz /etc/localtime
 for ((i=RETRY_NUM; i>0; i--)); do
   if [ "$(hostname -I)" != "" ]; then
     break
diff --git a/install/rstptoweb-v5-install.sh b/install/rstptoweb-v5-install.sh
index c0d51ac99..dbc1d606b 100644
--- a/install/rstptoweb-v5-install.sh
+++ b/install/rstptoweb-v5-install.sh
@@ -46,7 +46,8 @@ function msg_error() {
 msg_info "Setting up Container OS"
 sed -i "/$LANG/ s/\(^# \)//" /etc/locale.gen
 locale-gen >/dev/null
-timedatectl set-timezone $tz
+echo $tz > /etc/timezone
+ln -sf /usr/share/zoneinfo/$tz /etc/localtime
 for ((i=RETRY_NUM; i>0; i--)); do
   if [ "$(hostname -I)" != "" ]; then
     break
diff --git a/install/sabnzbd-v5-install.sh b/install/sabnzbd-v5-install.sh
index 9434927a8..e135afb63 100644
--- a/install/sabnzbd-v5-install.sh
+++ b/install/sabnzbd-v5-install.sh
@@ -46,7 +46,8 @@ function msg_error() {
 msg_info "Setting up Container OS"
 sed -i "/$LANG/ s/\(^# \)//" /etc/locale.gen
 locale-gen >/dev/null
-timedatectl set-timezone $tz
+echo $tz > /etc/timezone
+ln -sf /usr/share/zoneinfo/$tz /etc/localtime
 for ((i=RETRY_NUM; i>0; i--)); do
   if [ "$(hostname -I)" != "" ]; then
     break
diff --git a/install/scrypted-v5-install.sh b/install/scrypted-v5-install.sh
index 42080a838..1054b8d1b 100644
--- a/install/scrypted-v5-install.sh
+++ b/install/scrypted-v5-install.sh
@@ -46,7 +46,8 @@ function msg_error() {
 msg_info "Setting up Container OS "
 sed -i "/$LANG/ s/\(^# \)//" /etc/locale.gen
 locale-gen >/dev/null
-timedatectl set-timezone $tz
+echo $tz > /etc/timezone
+ln -sf /usr/share/zoneinfo/$tz /etc/localtime
 for ((i=RETRY_NUM; i>0; i--)); do
   if [ "$(hostname -I)" != "" ]; then
     break
diff --git a/install/shinobi-v5-install.sh b/install/shinobi-v5-install.sh
index d0f77c28e..ff165a748 100644
--- a/install/shinobi-v5-install.sh
+++ b/install/shinobi-v5-install.sh
@@ -47,7 +47,8 @@ function msg_error() {
 msg_info "Setting up Container OS "
 sed -i "/$LANG/ s/\(^# \)//" /etc/locale.gen
 locale-gen >/dev/null
-timedatectl set-timezone $tz
+echo $tz > /etc/timezone
+ln -sf /usr/share/zoneinfo/$tz /etc/localtime
 for ((i=RETRY_NUM; i>0; i--)); do
   if [ "$(hostname -I)" != "" ]; then
     break
diff --git a/install/sonarr-v5-install.sh b/install/sonarr-v5-install.sh
index fb878c3ac..955d0cc6f 100644
--- a/install/sonarr-v5-install.sh
+++ b/install/sonarr-v5-install.sh
@@ -47,7 +47,8 @@ function msg_error() {
 msg_info "Setting up Container OS"
 sed -i "/$LANG/ s/\(^# \)//" /etc/locale.gen
 locale-gen >/dev/null
-timedatectl set-timezone $tz
+echo $tz > /etc/timezone
+ln -sf /usr/share/zoneinfo/$tz /etc/localtime
 for ((i=RETRY_NUM; i>0; i--)); do
   if [ "$(hostname -I)" != "" ]; then
     break
diff --git a/install/syncthing-v5-install.sh b/install/syncthing-v5-install.sh
index bc6edfbc5..958a63f61 100644
--- a/install/syncthing-v5-install.sh
+++ b/install/syncthing-v5-install.sh
@@ -46,7 +46,8 @@ function msg_error() {
 msg_info "Setting up Container OS "
 sed -i "/$LANG/ s/\(^# \)//" /etc/locale.gen
 locale-gen >/dev/null
-timedatectl set-timezone $tz
+echo $tz > /etc/timezone
+ln -sf /usr/share/zoneinfo/$tz /etc/localtime
 for ((i=RETRY_NUM; i>0; i--)); do
   if [ "$(hostname -I)" != "" ]; then
     break
diff --git a/install/tdarr-v5-install.sh b/install/tdarr-v5-install.sh
index 2a3ef8c49..79c00018d 100644
--- a/install/tdarr-v5-install.sh
+++ b/install/tdarr-v5-install.sh
@@ -46,7 +46,8 @@ function msg_error() {
 msg_info "Setting up Container OS"
 sed -i "/$LANG/ s/\(^# \)//" /etc/locale.gen
 locale-gen >/dev/null
-timedatectl set-timezone $tz
+echo $tz > /etc/timezone
+ln -sf /usr/share/zoneinfo/$tz /etc/localtime
 for ((i=RETRY_NUM; i>0; i--)); do
   if [ "$(hostname -I)" != "" ]; then
     break
diff --git a/install/technitiumdns-v5-install.sh b/install/technitiumdns-v5-install.sh
index 4513b3db6..3650c52a2 100644
--- a/install/technitiumdns-v5-install.sh
+++ b/install/technitiumdns-v5-install.sh
@@ -47,7 +47,8 @@ function msg_error() {
 msg_info "Setting up Container OS "
 sed -i "/$LANG/ s/\(^# \)//" /etc/locale.gen
 locale-gen >/dev/null
-timedatectl set-timezone $tz
+echo $tz > /etc/timezone
+ln -sf /usr/share/zoneinfo/$tz /etc/localtime
 for ((i=RETRY_NUM; i>0; i--)); do
   if [ "$(hostname -I)" != "" ]; then
     break
diff --git a/install/transmission-v5-install.sh b/install/transmission-v5-install.sh
index e6fa97511..b37084850 100644
--- a/install/transmission-v5-install.sh
+++ b/install/transmission-v5-install.sh
@@ -46,7 +46,8 @@ function msg_error() {
 msg_info "Setting up Container OS"
 sed -i "/$LANG/ s/\(^# \)//" /etc/locale.gen
 locale-gen >/dev/null
-timedatectl set-timezone $tz
+echo $tz > /etc/timezone
+ln -sf /usr/share/zoneinfo/$tz /etc/localtime
 for ((i=RETRY_NUM; i>0; i--)); do
   if [ "$(hostname -I)" != "" ]; then
     break
diff --git a/install/trilium-v5-install.sh b/install/trilium-v5-install.sh
index ccb0f1afe..aba37afab 100644
--- a/install/trilium-v5-install.sh
+++ b/install/trilium-v5-install.sh
@@ -46,7 +46,8 @@ function msg_error() {
 msg_info "Setting up Container OS "
 sed -i "/$LANG/ s/\(^# \)//" /etc/locale.gen
 locale-gen >/dev/null
-timedatectl set-timezone $tz
+echo $tz > /etc/timezone
+ln -sf /usr/share/zoneinfo/$tz /etc/localtime
 for ((i=RETRY_NUM; i>0; i--)); do
   if [ "$(hostname -I)" != "" ]; then
     break
diff --git a/install/ubuntu-v5-install.sh b/install/ubuntu-v5-install.sh
index c77cadc84..19a880a3d 100644
--- a/install/ubuntu-v5-install.sh
+++ b/install/ubuntu-v5-install.sh
@@ -47,7 +47,8 @@ function msg_error() {
 msg_info "Setting up Container OS "
 sed -i "/$LANG/ s/\(^# \)//" /etc/locale.gen
 locale-gen >/dev/null
-timedatectl set-timezone $tz
+echo $tz > /etc/timezone
+ln -sf /usr/share/zoneinfo/$tz /etc/localtime
 for ((i=RETRY_NUM; i>0; i--)); do
   if [ "$(hostname -I)" != "" ]; then
     break
diff --git a/install/umbrel-v5-install.sh b/install/umbrel-v5-install.sh
index d63319415..236d4a10d 100644
--- a/install/umbrel-v5-install.sh
+++ b/install/umbrel-v5-install.sh
@@ -47,7 +47,8 @@ function msg_error() {
 msg_info "Setting up Container OS "
 sed -i "/$LANG/ s/\(^# \)//" /etc/locale.gen
 locale-gen >/dev/null
-timedatectl set-timezone $tz
+echo $tz > /etc/timezone
+ln -sf /usr/share/zoneinfo/$tz /etc/localtime
 for ((i=RETRY_NUM; i>0; i--)); do
   if [ "$(hostname -I)" != "" ]; then
     break
diff --git a/install/unifi-v5-install.sh b/install/unifi-v5-install.sh
index 54d9f90ad..55a08456a 100644
--- a/install/unifi-v5-install.sh
+++ b/install/unifi-v5-install.sh
@@ -48,7 +48,8 @@ function msg_error() {
 msg_info "Setting up Container OS "
 sed -i "/$LANG/ s/\(^# \)//" /etc/locale.gen
 locale-gen >/dev/null
-timedatectl set-timezone $tz
+echo $tz > /etc/timezone
+ln -sf /usr/share/zoneinfo/$tz /etc/localtime
 for ((i=RETRY_NUM; i>0; i--)); do
   if [ "$(hostname -I)" != "" ]; then
     break
diff --git a/install/uptimekuma-v5-install.sh b/install/uptimekuma-v5-install.sh
index 6a175b1cf..b0fdb9b41 100644
--- a/install/uptimekuma-v5-install.sh
+++ b/install/uptimekuma-v5-install.sh
@@ -47,7 +47,8 @@ function msg_error() {
 msg_info "Setting up Container OS "
 sed -i "/$LANG/ s/\(^# \)//" /etc/locale.gen
 locale-gen >/dev/null
-timedatectl set-timezone $tz
+echo $tz > /etc/timezone
+ln -sf /usr/share/zoneinfo/$tz /etc/localtime
 for ((i=RETRY_NUM; i>0; i--)); do
   if [ "$(hostname -I)" != "" ]; then
     break
diff --git a/install/vaultwarden-v5-install.sh b/install/vaultwarden-v5-install.sh
index 0da9f03c9..3c737500f 100644
--- a/install/vaultwarden-v5-install.sh
+++ b/install/vaultwarden-v5-install.sh
@@ -47,7 +47,8 @@ function msg_error() {
 msg_info "Setting up Container OS "
 sed -i "/$LANG/ s/\(^# \)//" /etc/locale.gen
 locale-gen >/dev/null
-timedatectl set-timezone $tz
+echo $tz > /etc/timezone
+ln -sf /usr/share/zoneinfo/$tz /etc/localtime
 for ((i=RETRY_NUM; i>0; i--)); do
   if [ "$(hostname -I)" != "" ]; then
     break
diff --git a/install/whisparr-v5-install.sh b/install/whisparr-v5-install.sh
index 204074cf5..0ba495449 100644
--- a/install/whisparr-v5-install.sh
+++ b/install/whisparr-v5-install.sh
@@ -46,7 +46,8 @@ function msg_error() {
 msg_info "Setting up Container OS"
 sed -i "/$LANG/ s/\(^# \)//" /etc/locale.gen
 locale-gen >/dev/null
-timedatectl set-timezone $tz
+echo $tz > /etc/timezone
+ln -sf /usr/share/zoneinfo/$tz /etc/localtime
 for ((i=RETRY_NUM; i>0; i--)); do
   if [ "$(hostname -I)" != "" ]; then
     break
diff --git a/install/whoogle-v5-install.sh b/install/whoogle-v5-install.sh
index 40eec0295..6044e6d15 100644
--- a/install/whoogle-v5-install.sh
+++ b/install/whoogle-v5-install.sh
@@ -47,7 +47,8 @@ function msg_error() {
 msg_info "Setting up Container OS "
 sed -i "/$LANG/ s/\(^# \)//" /etc/locale.gen
 locale-gen >/dev/null
-timedatectl set-timezone $tz
+echo $tz > /etc/timezone
+ln -sf /usr/share/zoneinfo/$tz /etc/localtime
 for ((i=RETRY_NUM; i>0; i--)); do
   if [ "$(hostname -I)" != "" ]; then
     break
diff --git a/install/wikijs-v5-install.sh b/install/wikijs-v5-install.sh
index 09e417c6a..2c5433ebc 100644
--- a/install/wikijs-v5-install.sh
+++ b/install/wikijs-v5-install.sh
@@ -47,7 +47,8 @@ function msg_error() {
 msg_info "Setting up Container OS "
 sed -i "/$LANG/ s/\(^# \)//" /etc/locale.gen
 locale-gen >/dev/null
-timedatectl set-timezone $tz
+echo $tz > /etc/timezone
+ln -sf /usr/share/zoneinfo/$tz /etc/localtime
 for ((i=RETRY_NUM; i>0; i--)); do
   if [ "$(hostname -I)" != "" ]; then
     break
diff --git a/install/wireguard-v5-install.sh b/install/wireguard-v5-install.sh
index 87e9bf330..52a617b45 100644
--- a/install/wireguard-v5-install.sh
+++ b/install/wireguard-v5-install.sh
@@ -47,7 +47,8 @@ function msg_error() {
 msg_info "Setting up Container OS "
 sed -i "/$LANG/ s/\(^# \)//" /etc/locale.gen
 locale-gen >/dev/null
-timedatectl set-timezone $tz
+echo $tz > /etc/timezone
+ln -sf /usr/share/zoneinfo/$tz /etc/localtime
 for ((i=RETRY_NUM; i>0; i--)); do
   if [ "$(hostname -I)" != "" ]; then
     break
diff --git a/install/yunohost-v5-install.sh b/install/yunohost-v5-install.sh
index 19e7869dc..b1baf0479 100644
--- a/install/yunohost-v5-install.sh
+++ b/install/yunohost-v5-install.sh
@@ -46,7 +46,8 @@ function msg_error() {
 msg_info "Setting up Container OS"
 sed -i "/$LANG/ s/\(^# \)//" /etc/locale.gen
 locale-gen >/dev/null
-timedatectl set-timezone $tz
+echo $tz > /etc/timezone
+ln -sf /usr/share/zoneinfo/$tz /etc/localtime
 for ((i=RETRY_NUM; i>0; i--)); do
   if [ "$(hostname -I)" != "" ]; then
     break
diff --git a/install/zigbee2mqtt-v5-install.sh b/install/zigbee2mqtt-v5-install.sh
index a7a38c91d..3bcde7684 100644
--- a/install/zigbee2mqtt-v5-install.sh
+++ b/install/zigbee2mqtt-v5-install.sh
@@ -47,7 +47,8 @@ function msg_error() {
 msg_info "Setting up Container OS "
 sed -i "/$LANG/ s/\(^# \)//" /etc/locale.gen
 locale-gen >/dev/null
-timedatectl set-timezone $tz
+echo $tz > /etc/timezone
+ln -sf /usr/share/zoneinfo/$tz /etc/localtime
 for ((i=RETRY_NUM; i>0; i--)); do
   if [ "$(hostname -I)" != "" ]; then
     break
diff --git a/install/zwave-js-ui-v5-install.sh b/install/zwave-js-ui-v5-install.sh
index 83e8d30af..e97b125d9 100644
--- a/install/zwave-js-ui-v5-install.sh
+++ b/install/zwave-js-ui-v5-install.sh
@@ -47,7 +47,8 @@ function msg_error() {
 msg_info "Setting up Container OS "
 sed -i "/$LANG/ s/\(^# \)//" /etc/locale.gen
 locale-gen >/dev/null
-timedatectl set-timezone $tz
+echo $tz > /etc/timezone
+ln -sf /usr/share/zoneinfo/$tz /etc/localtime
 for ((i=RETRY_NUM; i>0; i--)); do
   if [ "$(hostname -I)" != "" ]; then
     break