The U.S. military uses 24-hour military time to avoid confusion between a.m. and p.m. The Navy started using it in 1920, and the Army adopted it in 1942.

I cannot for the life of me figure out how to make my clock display in 24-hour format. I've seen it displayed this way on plenty of screenshots of desktops; although most if not all were from ...

The commandant of the US Marine Corps announced a 24-hour operational pause for all Marine Corps aircraft Friday, a move that comes after the Marines suffered two deadly crashes in recent weeks.

The Navy was the first branch of the U.S. military to embrace the 24-hour clock in 1920. It may be hard to believe, but the U.S. Army didn't start using military time until 0400 on July 1, 1942.