time_timezone.py

#!/usr/bin/env python


import time
import os


def show_zone_info():
    print ' TZ    :', os.environ.get('TZ', '(not set)')
    print ' tzname:', time.tzname
    print ' Zone  : %d (%d)' % (time.timezone,
                                (time.timezone / 3600))
    print ' DST   :', time.daylight
    print ' Time  :', time.ctime()
    print

print 'Default :'
show_zone_info()

ZONES = ['GMT', 'Europe/Amsterdam', ]

for zone in ZONES:
    os.environ['TZ'] = zone
    time.tzset()
    print zone, ':'
    show_zone_info()