Change 21282

Time Attribute with previous and current values
Change #21282
2013-05-24
22:01:50

update Calagator::Event 1250464180 Python Presentation Roll back

end_time 2013-10-08 08:30:00 -0700 2013-10-08 20:30:00 -0700
start_time 2013-10-08 06:30:00 -0700 2013-10-08 18:30:00 -0700