Convert From CST to EST

I am trying to find or write a formula that will convert a column of date/times in Central Standard Time to Eastern Standard time. It seem like it should be a matter of adding one hour, but I cannot figure out how to do that.

5/15/2010 0:09:56 this is CST and I need it to be in EST
5/15/2010 0:14:52
5/15/2010 0:17:58
5/15/2010 0:18:49
5/15/2010 0:19:49
5/15/2010 0:20:21
5/15/2010 0:22:34
5/15/2010 0:22:45
5/15/2010 0:48:01
5/15/2010 2:14:00
5/15/2010 3:07:37
5/15/2010 3:08:41
5/15/2010 3:09:13

Hi,

=A1+1/24

should do it for you.

Make sure that the new cell is formatted to display as date/time.