What is 12 AM in Military Time?
12 AM in military time equals
0000
How to Convert 12 AM
12 AM is the midnight hour. On the 24-hour clock the day restarts at hour 00, so 12:00 AM becomes 0000.
12 AM → hour 00 → 0000 — midnight is hour 00, not hour 12 (the minutes stay 00).
Going the other way: 0000 is hour 00 — the first hour of a new day — so it reads as 12:00 AM (midnight). The same conversion has its own full answer page: What is 0000 in military time? Or type any time into the military time converter on the home page.
Times Around 12 AM
See the whole day on one page: Military Time Chart or view the full 24-hour chart.
All AM & PM Conversions
Every hour of the regular 12-hour clock has its own quick answer page:
When You'll See 12 AM
12 AM is midnight — the moment the date changes. Overnight shift handoffs, hospital logs, and "open until 12 AM" store hours all land here, and in military format it is written 0000.
To say it out loud: "zero hundred hours." Whole hours always take the "hundred" wording.
Frequently Asked Questions
How do you write 12 AM in military time?
0000. Midnight is hour 00, so 12:00 AM becomes 0000 (some logs accept 2400 for "end of day," but 0000 is the standard).
What is 12 AM on a 24-hour clock?
0:00. Military time drops the colon and the AM/PM label: 12 AM = 0:00 = 0000 — three ways to write the same moment.
How do you say 0000 in military time?
"Zero hundred hours." Whole hours always take the "hundred hours" wording on the radio and on shift handoffs.
What is 12:30 AM in military time?
0030. Only the hour converts — the minutes carry over exactly as they are: 12:30 AM → 0030.