Reference & AI

1000 Military Time

AR 25-50

1000 on the 24-hour clock is 10:00 AM. 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

1000 in standard time

10:00 AM

Read aloud

ten hundred

The hour before and after

0900 · 1100

Before noon the hour keeps its number: drop the leading zero and add a.m., so 1000 is 10:00 a.m.

1000 to 1059: every minute of the hour

The first two digits stay 10; the last two are the minutes.

1000 to 1014 in standard time
MilitaryStandard
100010:00 a.m.
100110:01 a.m.
100210:02 a.m.
100310:03 a.m.
100410:04 a.m.
100510:05 a.m.
100610:06 a.m.
100710:07 a.m.
100810:08 a.m.
100910:09 a.m.
101010:10 a.m.
101110:11 a.m.
101210:12 a.m.
101310:13 a.m.
101410:14 a.m.
1015 to 1029 in standard time
MilitaryStandard
101510:15 a.m.
101610:16 a.m.
101710:17 a.m.
101810:18 a.m.
101910:19 a.m.
102010:20 a.m.
102110:21 a.m.
102210:22 a.m.
102310:23 a.m.
102410:24 a.m.
102510:25 a.m.
102610:26 a.m.
102710:27 a.m.
102810:28 a.m.
102910:29 a.m.
1030 to 1044 in standard time
MilitaryStandard
103010:30 a.m.
103110:31 a.m.
103210:32 a.m.
103310:33 a.m.
103410:34 a.m.
103510:35 a.m.
103610:36 a.m.
103710:37 a.m.
103810:38 a.m.
103910:39 a.m.
104010:40 a.m.
104110:41 a.m.
104210:42 a.m.
104310:43 a.m.
104410:44 a.m.
1045 to 1059 in standard time
MilitaryStandard
104510:45 a.m.
104610:46 a.m.
104710:47 a.m.
104810:48 a.m.
104910:49 a.m.
105010:50 a.m.
105110:51 a.m.
105210:52 a.m.
105310:53 a.m.
105410:54 a.m.
105510:55 a.m.
105610:56 a.m.
105710:57 a.m.
105810:58 a.m.
105910:59 a.m.

1000 local time in Zulu (UTC)

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

1000 in each U.S. time zone, converted to Zulu time
1000 in this zoneStandard timeDaylight time
Eastern1500Z1400Z
Central1600Z1500Z
Mountain1700Z1600Z
Pacific1800Z1700Z
Alaska1900Z1800Z
Hawaii2000Z1900Z

How 1000 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 1000 is hour 10, minute 00: 10:00 a.m.

Said aloud it is "ten 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.