sxmo-utils/scripts/core/sxmo_timezonechange.sh

#!/usr/bin/env sh

change() {
  echo "Changing timezone to $1"
  sudo setup-timezone -z "$1"
  echo 1 > /tmp/sxmo_bar
  echo Timezone changed ok
  read
}

menu() {
  T="$(
    find /usr/share/zoneinfo -type f | 
    sed  's#^/usr/share/zoneinfo/##g' |
    sort |
    sxmo_dmenu_with_kb.sh -p Timezone -c -l 10 -fn Terminus-20 -i
  )"
  st -e "$0" change "$T"
}

[ $# -gt 0 ] && $@ || menu