timezones and time_t

[MrBlueSky]

Thanks for the reply.  Unfortunately, a simple "+offset" type solution
isn't really accurate enough for the kind of scenario I'm looking at.
I'm often dealing with different timezones with DST changeovers on
different dates or even different times of day!  So I need
industrial-strength timezone handling!

Wrt your naming conventions... sorry, I'm a newbie to Python so not
really qualified to comment.  But what's a PEP?