Hello, everyone.
While messing around with Zope, I came across a bug in the DateTime class. The following python session exhibits the faulty behavior:
date = DateTime('05/01/1999').earliestTime() d = (date - date.day()).earliestTime() print d 1999/04/30 00:00:01 US/Eastern print (d - 24) 1999/04/06 00:00:01 US/Eastern # correct print (d - 25) 1999/04/05 00:00:01 US/Eastern # correct print (d - 26) 1999/04/03 23:00:1 US/Eastern # incorrect d = d - (d.day() - 1) print d 1999/03/31 23:00:1 US/Eastern # incorrect ^D
Apparently, the DateTime code is picking up an extra hour somewhere which is throwing the calculation off.
At first glance, I'd guess that you are seeing the (backward) transition from daylight savings time to standard time... Brian Lloyd brian@digicool.com Software Engineer 540.371.6909 Digital Creations http://www.digicool.com