python datetime repository

[Sakesun Roykiattisak]

During the moment of learning and using  python + various API, I 've 
come across many kinds of datetime classes.

python 2.3 datetime.datetime
xmlrpclib.DateTime
pywintypes.Time
mxDateTime
Zope's DateTime
pyical's DateTime

Anybody know any other python datetime class out there ?  Just wonder if 
there are more.

According to Bruce Eckel, "Python reduce clutter".  Perhaps datetime 
clutter is badly need reduction.