Hi! thanks for the programm - it's really cool
But here's something I've noticed - when adding a new Event, its default time is current time - it's not very comfortable. Also, changing the time is weird - why would I need to enter seconds in it?

it only takes to much time and nerves to make a new event.
So IMHO, you should change it.
1. Theres no need to enter seconds.
2. Default time should be 00:00 i guess
3. A day-time calendar should be implemented - something like usual calendar, but with hours and minutes (5-10-15-20 etc) in it.
4. ":" should be a fixed symbol - I mean when I write something in the Time field - the first two digits I type should go as hours and the last ones - minutes... scroll is useless as it's now...
Sorry, if it's only my own problem.. But I think your VERY USEFULL program would be even more user-friendly after some light changes

Best wishes!