STINNER Victor wrote:
> 
> STINNER Victor <victor.stinner@haypocalc.com> added the comment:
> 
> Marc, could you maybe write a new patching taking care of the DST and
> maybe also the timezone? It looks like you have a long experience in
> timestamps :-)

Sorry, but no. I'm not really a fan of the datetime module and
try to stay away from it whenever I can :-)

Note that dealing with DST in timezones other than the local time
zone, is bound to go wrong without direct access to the tz library.
The C lib doesn't provide any good way to access timezone
information other than the local timezone or UTC.

When dealing with date/time values, it is usually best to stay with
UTC and only transform those values into local times in user
interfaces on the front-end client.

Consequently, I'd suggest to only allow UTC and local timezone
conversions for the method in the datetime module.