Reference & AI

0000 Military Time

AR 25-50

0000 on the 24-hour clock is 12:00 AM, midnight at the start of the day. Every minute of the hour, the Zulu time by U.S. time zone and how to say it are below.

Reviewed by Guilherme Correia, active-duty U.S. Air Force

0000 in standard time

12:00 AM

Read aloud

zero zero hundred

The hour before and after

2400 · 0100

The 24-hour clock starts the day at 0000. AR 25-50 counts military time from 0001 to 2400, so the midnight that ends a day is written 2400.

0000 to 0059: every minute of the hour

The first two digits stay 00; the last two are the minutes.

0000 to 0014 in standard time
MilitaryStandard
000012:00 a.m.
000112:01 a.m.
000212:02 a.m.
000312:03 a.m.
000412:04 a.m.
000512:05 a.m.
000612:06 a.m.
000712:07 a.m.
000812:08 a.m.
000912:09 a.m.
001012:10 a.m.
001112:11 a.m.
001212:12 a.m.
001312:13 a.m.
001412:14 a.m.
0015 to 0029 in standard time
MilitaryStandard
001512:15 a.m.
001612:16 a.m.
001712:17 a.m.
001812:18 a.m.
001912:19 a.m.
002012:20 a.m.
002112:21 a.m.
002212:22 a.m.
002312:23 a.m.
002412:24 a.m.
002512:25 a.m.
002612:26 a.m.
002712:27 a.m.
002812:28 a.m.
002912:29 a.m.
0030 to 0044 in standard time
MilitaryStandard
003012:30 a.m.
003112:31 a.m.
003212:32 a.m.
003312:33 a.m.
003412:34 a.m.
003512:35 a.m.
003612:36 a.m.
003712:37 a.m.
003812:38 a.m.
003912:39 a.m.
004012:40 a.m.
004112:41 a.m.
004212:42 a.m.
004312:43 a.m.
004412:44 a.m.
0045 to 0059 in standard time
MilitaryStandard
004512:45 a.m.
004612:46 a.m.
004712:47 a.m.
004812:48 a.m.
004912:49 a.m.
005012:50 a.m.
005112:51 a.m.
005212:52 a.m.
005312:53 a.m.
005412:54 a.m.
005512:55 a.m.
005612:56 a.m.
005712:57 a.m.
005812:58 a.m.
005912:59 a.m.

0000 local time in Zulu (UTC)

From the FAA's table: add the hours shown to standard time, one hour less in daylight time.

0000 in each U.S. time zone, converted to Zulu time
0000 in this zoneStandard timeDaylight time
Eastern0500Z0400Z
Central0600Z0500Z
Mountain0700Z0600Z
Pacific0800Z0700Z
Alaska0900Z0800Z
Hawaii1000Z0900Z

How 0000 is written and said

AR 25-50, para. 1-26: "Military time will be expressed in a group of four digits, from 0001 to 2400, based on the 24–hour clock system. The first two digits represent the hour after midnight and the last two digits represent the minutes." So 0000 is hour 00, minute 00: 12:00 a.m. (midnight)

Said aloud it is "zero zero hundred". On paper the same paragraph says "The word "hours" will not be used in conjunction with military time," and that military time is used for memorandums while civilian time is used in letters.

Every hour in military time

For any other time, in either direction, use the military time converter.

Keep going

AR 25-50, Preparing and Managing Correspondence, para. 1-26 (10 October 2020, administrative revisions through 4 October 2024) · Federal Aviation Administration, Aeronautical Information Manual, Chapter 4, Section 2, paragraph 4-2-12, Time (read November 11, 2026)

Results are estimates. Always verify with your finance office.

Reviewed by Guilherme Correia · Military Toolkit editorial

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Official sources: AR 25-50 on armypubs.army.mil · FAA Aeronautical Information Manual, paragraph 4-2-12.