Here's a "Tourney Start Time Conversion Table" I made.
Copy, print and use it if you like! - Quint :P

GMT - EST - CLOCK TIME


01:00 - 20:00 - 8:00 pm

02:00 - 21:00 - 9:00 pm

03:00 - 22:00 - 10:00 pm

04:00 - 23:00 - 11:00 pm

05:00 - 00:00 - 12:00 Midnight

06:00 - 01:00 - 1:00 am

07:00 - 02:00 - 2:00 am

08:00 - 03:00 - 3:00 am

09:00 - 04:00 - 4:00 am

10:00 - 05:00 - 5:00 am

11:00 - 06:00 - 6:00 am

12:00 - 07:00 - 7:00 am

13:00 - 08:00 - 8:00 am

14:00 - 09:00 - 9:00 am

15:00 - 10:00 - 10:00 am

16:00 - 11:00 - 11:00 am

17:00 - 12:00 - 12:00 Noon

18:00 - 13:00 - 1:00 pm

19:00 - 14:00 - 2:00pm

20:00 - 15:00 - 3:00 pm

21:00 - 16:00 - 4:00 pm

22:00 - 17:00 - 5:00 pm

23:00 - 18:00 - 6:00 pm

00:00 - 19:00 - 7:00 pm