Change 16931

Time Attribute with previous and current values
Change #16931
2012-08-31
16:59:15

update Calagator::Event 1250462802 Software Development and Design Using MVVM Roll back

end_time 2012-09-19 19:00:00 -0700 2012-09-19 20:00:00 -0700
start_time 2012-09-19 17:30:00 -0700 2012-09-19 18:00:00 -0700