Sets the time zone to be used by WatchTower's logs and the optional Cron scheduling argument (--schedule). If this environment variable is not set, Watchtower will use the default time zone: UTC.
To find out the right value, see [this list](https://en.wikipedia.org/wiki/List_of_tz_database_time_zones), find your location and use the value in _TZ Database Name_, e.g _Europe/Rome_.