Timedatectl alternative

birdnet-pi/rootfs/usr/bin/timedatectl

@@ -1,16 +1,27 @@
 #!/bin/bash
 
-# Function to show the current timezone
+# Function to show the current timezone, with two alternative methods
 show_timezone() {
-    current_timezone=$(date +%Z)
-    echo "Current timezone: $current_timezone"
+    # Check if the /etc/timezone file exists
+    if [ -f /etc/timezone ]; then
+        timezone=$(cat /etc/timezone)
+    elif [ -f /etc/localtime ]; then
+        timezone=$(readlink /etc/localtime)
+        timezone=${timezone/\/usr\/share\/zoneinfo\//}
+    else
+        timezone="Cannot determine timezone."
+    fi
+    echo "$timezone"
 }
 
 # Function to set the timezone
 set_timezone() {
     new_timezone="$1"
-    sudo timedatectl set-timezone "$new_timezone"
-    echo "Timezone set to: $new_timezone"
+    echo "$new_timezone" | sudo tee /etc/timezone >/dev/null
+    sudo ln -sf /usr/share/zoneinfo/"$new_timezone" /etc/localtime
+    if [ -f /etc/environment ]; then sudo sed -i "/TZ/c\TZ=$new_timezone" /etc/environment; fi
+    if [ -d /var/run/s6/container_environment ]; then sudo echo "$new_timezone" > /var/run/s6/container_environment/TZ; fi
+    echo "$new_timezone"
 }
 
 # Main script
@@ -18,11 +29,12 @@ case "$1" in
     "set-ntp")
         case "$2" in
             "false")
-                sudo timedatectl set-ntp false
+                sudo systemctl disable systemd-timesyncd
                 echo "NTP disabled"
                 ;;
             "true")
-                sudo timedatectl set-ntp true
+                sudo systemctl enable systemd-timesyncd
+                sudo systemctl start systemd-timesyncd
                 echo "NTP enabled"
                 ;;
             *)