The only way for us to use 24 hour format is to select "Svenska" as preferred language (or some of the other languages that uses the 24 hour format. But if you really want to use English as a system language you are also forced to use 12 hour format (AM/PM).
I think it's quite easy to add this feature. I give you the design and the developers can focus on the code :D
Sorry George for all questions I ask... I appreciate that you always responds quickly.
Have a great weekend!