Military Time Calculator

Military time uses a 24-hour clock: 0000 (midnight) to 2359 (11:59 PM). Hours 1-12 are the same as AM, while PM hours add 12 (1 PM = 1300, 5 PM = 1700, 10 PM = 2200). No AM/PM ambiguity.

For hours 0-12, the time is the same as AM. For 13-23, subtract 12 to get the PM hour. 0000 = 12:00 AM, 1200 = 12:00 PM, 1300 = 1:00 PM, 2100 = 9:00 PM.

Military, aviation, emergency services, hospitals, and most countries outside the US use 24-hour time. It eliminates the ambiguity of AM/PM and is the standard for international communication and scheduling.