fg_issue.py

from __future__ import print_function

import datetime
from dateutil.tz import gettz, tzlocal

from freezegun import freeze_time

def show(timezone):
    print('-'*20)
    print("timezone:", timezone)

    time = datetime.datetime.now()
    print("no tz:  ", time)
    time = datetime.datetime.now(timezone)
    print("with tz:", time)

def show_both():
#    show(tzlocal())
    show(gettz('Europe/London'))

import sys
print(sys.version_info)

TZ_OFFSET = 0
#if sys.version_info[0] == 3:
#    TZ_OFFSET = 1

show_both()

with freeze_time('2014-04-26 12:01:00', tz_offset=TZ_OFFSET):
    print('Freeze')
    show_both()

python2.txt

sys.version_info(major=2, minor=7, micro=6, releaselevel='final', serial=0)
--------------------
timezone: tzfile('/usr/share/zoneinfo/Europe/London')
no tz:   2015-03-01 02:47:05.823523
with tz: 2015-03-01 02:47:05.823535+00:00
Freeze
--------------------
timezone: tzfile('/usr/share/zoneinfo/Europe/London')
no tz:   2014-04-26 12:01:00
with tz: 2014-04-26 13:01:00+01:00

python3.txt

sys.version_info(major=3, minor=4, micro=0, releaselevel='final', serial=0)
--------------------
timezone: tzfile('/usr/share/zoneinfo/Europe/London')
no tz:   2015-03-01 02:47:06.915285
with tz: 2015-03-01 02:47:06.915304+00:00
Freeze
--------------------
timezone: tzfile('/usr/share/zoneinfo/Europe/London')
no tz:   2014-04-26 12:01:00
with tz: 2014-04-26 12:01:00+01:00