Timezone

[Choppy]

I was wondering whether anyone knew if it's possible to change the timezone in a
Python script.  The reason I ask is because my script is required to read dates
with their associated timezones and transform them into GMT.  Python has a
funtion called gmtime() in their time module however it only transforms the time
based on the current local timezone.  I solved this issue with C++ by setting an
environment variable "TZ" to the appropriate timezone and running the _tzset()
standard C library function to reset the current timezone.  I don't see a way of
doing this in Python though.  Any help would be appreciated.

Thanks
Choppy