Guido van Rossum writes:
10pm EST has a different feel to it than one sent at 4am MET. It should sort on UTC, but it should use the original timezone to display the dates.
Sounds like a user preference, not a universal truth.
Is it important that the timezone is part of the date/time type, though? Is it important that it be part of the abstract base date/time?
Specific implementations should certainly be able to add support for timezones, and perhaps some hypothetical default date/time type should include it for convenience, but that doesn't tell me it's fundamental.
-- Fred L. Drake, Jr. <fdrake at acm.org> PythonLabs at Zope Corporation