Converting XX:XX AM/PM to 24 Hour Clock

Question

I have searched google and I cannot find out how you can take a string: xx:xx AM/PM (ex. 3:30 PM) and change it so that it is now in 24 hours.

So for e

Answer 1

Mine did not work till I added Locale like this:

SimpleDateFormat date12Format = new SimpleDateFormat("hh:mm aa", Locale.US);