On Fri, Mar 30, 2012 at 12:38, Serhiy Storchaka <storchaka at gmail.com> wrote: > I don't understand why Python may not include the pytz. The Olson tz > database is not part of pytz. Yes it is. > Python can depend on a system tz database That works on Unix, but not on Windows, where there is no Olsen database. //Lennart