Reference & AI

1600 Military Time

AR 25-50

1600 on the 24-hour clock is 4:00 PM. 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

1600 in standard time

4:00 PM

Read aloud

sixteen hundred

The hour before and after

1500 · 1700

From 1300 on, subtract 12 from the first two digits and add p.m.: 16 minus 12 is 4, so 1600 is 4:00 p.m.

1600 to 1659: every minute of the hour

The first two digits stay 16; the last two are the minutes.

1600 to 1614 in standard time
MilitaryStandard
16004:00 p.m.
16014:01 p.m.
16024:02 p.m.
16034:03 p.m.
16044:04 p.m.
16054:05 p.m.
16064:06 p.m.
16074:07 p.m.
16084:08 p.m.
16094:09 p.m.
16104:10 p.m.
16114:11 p.m.
16124:12 p.m.
16134:13 p.m.
16144:14 p.m.
1615 to 1629 in standard time
MilitaryStandard
16154:15 p.m.
16164:16 p.m.
16174:17 p.m.
16184:18 p.m.
16194:19 p.m.
16204:20 p.m.
16214:21 p.m.
16224:22 p.m.
16234:23 p.m.
16244:24 p.m.
16254:25 p.m.
16264:26 p.m.
16274:27 p.m.
16284:28 p.m.
16294:29 p.m.
1630 to 1644 in standard time
MilitaryStandard
16304:30 p.m.
16314:31 p.m.
16324:32 p.m.
16334:33 p.m.
16344:34 p.m.
16354:35 p.m.
16364:36 p.m.
16374:37 p.m.
16384:38 p.m.
16394:39 p.m.
16404:40 p.m.
16414:41 p.m.
16424:42 p.m.
16434:43 p.m.
16444:44 p.m.
1645 to 1659 in standard time
MilitaryStandard
16454:45 p.m.
16464:46 p.m.
16474:47 p.m.
16484:48 p.m.
16494:49 p.m.
16504:50 p.m.
16514:51 p.m.
16524:52 p.m.
16534:53 p.m.
16544:54 p.m.
16554:55 p.m.
16564:56 p.m.
16574:57 p.m.
16584:58 p.m.
16594:59 p.m.

1600 local time in Zulu (UTC)

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

1600 in each U.S. time zone, converted to Zulu time
1600 in this zoneStandard timeDaylight time
Eastern2100Z2000Z
Central2200Z2100Z
Mountain2300Z2200Z
Pacific0000Z next day2300Z
Alaska0100Z next day0000Z next day
Hawaii0200Z next day0100Z next day

How 1600 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 1600 is hour 16, minute 00: 4:00 p.m.

Said aloud it is "sixteen 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.