##### /etc/config/timezone

config timezone
	option timezone 'Europe/Berlin'


##### /etc/init.d/timezone

#!/bin/sh /etc/rc.common
# Copyright (C) 2006 OpenWrt.org
START=11

TIMEZONE_TABLE=/usr/lib/timezones.csv

get_posix_timezone() {
	awk -v timezoneinfo="$timezone" 'BEGIN { FS = "	" }
		/^(#.*)?$/ { next }
		{ list_timezone = $4; if ( list_timezone == timezoneinfo ) { print $3 } }
		END { }' < $TIMEZONE_TABLE 2>/dev/null
}

list_available_timezones() {
	awk 'BEGIN { FS = "	"; last_group="" }
		/^(#.*)?$/ {next}
		$1 != last_group { last_group=$1; print "\n" $1 }
		{ list_timezone = $4; print "  " list_timezone }
		END { }' < $TIMEZONE_TABLE 2>/dev/null
}

start_service () {
	local section="$1"
	config_get timezone "$section" timezone

	echo "$timezone" > /tmp/x.txt

	#if [ ! -h /etc/TZ ]; then 
	#	ln -sf /tmp/TZ "/etc/TZ"
	#fi
	[ -n "$timezone" ] && get_posix_timezone "$timezone" > "/etc/TZ" || echo "UTC+0" > "/etc/TZ"
}

start () {
	config_load "timezone"
	config_foreach start_service timezone
}

restart () {
	start
}

list_timezones () {
	echo "Available time zones"
	echo "--------------------"

	list_available_timezones
}