Game Help:12-24 Hour Clock

Problem

Sometimes after installing certain expansions, perhaps certain editions of them (depending on the country you purchased them in), the game will suddenly switch to 24 hour/military time instead of the standard 12 hour time.

Solution

To fix this, you can install this hack by Pilot76103. You must be using an English-language version of the game for that to work. It should work just fine with any expansions you may have.