In [36]: import os

In [38]: time.strftime("%H:%M:%S", time.localtime())
Out[38]: '10:24:02'

In [39]: os.environ['TZ'] = 'EST+02'

In [40]: time.tzset()

In [41]: time.strftime("%H:%M:%S", time.localtime())
Out[41]: '01:24:46'

from datetime import datetime, tzinfo, timedelta

class FixedOffset(tzinfo):

     def __init__(self, offset, name):
         self.__offset = timedelta(hours=offset)
         self.__name = name

     def utcoffset(self, dt):
         return self.__offset

     def tzname(self, dt):
         return self.__name

     def dst(self, dt):
         return timedelta(0)

print datetime.now()
print datetime.now(FixedOffset(2,'UTC+2'))