#!/usr/bin/python

import pytz
from collections import OrderedDict

# The following zones are not in pytz.common_timezones and
# Etc category in pytz.all_timezones includes some more,
# however confusing ones (like UCT, GMT+0, GMT-0,...)
ETC_ZONES = ['GMT+1', 'GMT+2', 'GMT+3', 'GMT+4', 'GMT+5', 'GMT+6', 'GMT+7',
             'GMT+8', 'GMT+9', 'GMT+10', 'GMT+11', 'GMT+12',
             'GMT-1', 'GMT-2', 'GMT-3', 'GMT-4', 'GMT-5', 'GMT-6', 'GMT-7',
             'GMT-8', 'GMT-9', 'GMT-10', 'GMT-11', 'GMT-12', 'GMT-13',
             'GMT-14', 'UTC', 'GMT']

if __name__ == "__main__":
    result = OrderedDict()

    for tz in pytz.common_timezones:
        parts = tz.split("/", 1)

        if len(parts) > 1:
            print tz

    for tz in ETC_ZONES:
        print "Etc/" + tz