How do I change the timestamp to the 12-hour format instead of 24-hour? How do I change the way the date and time is shown in timestamps?
In the settings (which you can access like this), you can change the format of how the date and time will appear on post timestamps. By default, the format will be %Y-%m-%D %H:%i, which would look like 2011-04-09 23:07. There are plenty of these “special sequences” that you can use, all of them conveniently listed on the settings page. For example, if you wanted that same timestamp to show up as 9-Apr-2011 11:07pm, you would enter the format as %d-%M-%Y %g:%i%a.
