Status Bar Am/Pm Toggle Mod
If like some Android owners, you’d like the option to be able to toggle the AM/PM on your status bar clock, then look no further.
XDA forum member s0niqu3 (with a little help from untermensch) has built a user-selectable option to toggle the AM/PM flag in the status bar clock! The mod will not affect those that use 24-hour time and should be compatible with custom fonts.
The zip file will attempt to wipe your dalvik-cache, so the first boot after flashing will take a long time.
The XDA dev has also posted the source, for those interested in learning about the mod or using it in another mod.
For more information, head on over to the modification thread.