haypo> How? I don't understand your suggestion.

Sorry, another case of mail to tracker bug.  Here is what I wrote:

"""
.. you can convert delta to time using an arbitrary anchor date and
extract hms that way:

>>> x = datetime(1,1,1) + timedelta(hours=1, minutes=24, seconds=19)
>>> x.hour,x.minute,x.second
(1, 24, 19)

(depending on your needs you may want to add delta.days*24 to the hours)
"""

but tracker ate the '>>>' lines :-(