2009, David Pogue, Mac OS X Snow Leopard (The Missing Manual), O'Reilly, →ISBN, page 320:
Tip: If you're frustrated that the Mac is showing you the 24-hour “military time” on your menu bar (that is, 17:30 instead of 5:30 p.m.)—or that it isn't showing military time when you'd like it to—click the Clock tab and turn “Use a 24-hour clock” on or off.
(military,US and allied forces) A specific system of denoting and pronouncing the times of the 24-hour clock.
2014, Eric Van Lustbader, The Testament[1], Bloomsbury Publishing, →ISBN:
Again, Bravo pointed. “Look!” As they watched, they saw a ghostly shape rising slowly out of the sea. Jenny, glancing at her watch, said, “One, five, three, zero. Fifteen-thirty—it's military time! Three-thirty in the afternoon.
