While working on some issues in Australian time zone with ACT! 2010 Premium installed with AU locale, I noticed that if you have yearly recurring activities scheduled before 2007, the new instances don't have updated End Time with proper DST changes.
For example:
1. Create yearly recurring activity in October 2005 at 3:30 am until 3:40 am, no end date
2. Clear all instances from 2005 until 2009
3. Open instance for 2010 and you'll see:
Start time: 4:30 am
End time: 3:40 am
Doesn't make sense. See the images.
Looks like conversion is not done properly on End time property.
