What is 0031 in Military Time?
0031 military time equals
12:31 AM
How to Convert 0031
0031 sits in the first hour after midnight. The rule for 0000–0059: the standard hour is 12, and the label is AM.
00 = 12 → 12:31 AM AM — the first hour after midnight counts as 12 AM (the minutes, 31, stay exactly the same).
Going the other way: 12:31 AM counts as hour 00 — the hour after midnight — so it becomes 0031. Or skip the math — type 0031 into the military time converter and convert any time instantly on the home page.
Times Around 0031
See the whole day on one page: Military Time Chart or view the full 24-hour chart.
All Times From 0000 to 0059
Every minute of this hour has its own quick answer page:
- 0000 12:00 AM (Midnight)
- 0001 12:01 AM
- 0002 12:02 AM
- 0003 12:03 AM
- 0004 12:04 AM
- 0005 12:05 AM
- 0006 12:06 AM
- 0007 12:07 AM
- 0008 12:08 AM
- 0009 12:09 AM
- 0010 12:10 AM
- 0011 12:11 AM
- 0012 12:12 AM
- 0013 12:13 AM
- 0014 12:14 AM
- 0015 12:15 AM
- 0016 12:16 AM
- 0017 12:17 AM
- 0018 12:18 AM
- 0019 12:19 AM
- 0020 12:20 AM
- 0021 12:21 AM
- 0022 12:22 AM
- 0023 12:23 AM
- 0024 12:24 AM
- 0025 12:25 AM
- 0026 12:26 AM
- 0027 12:27 AM
- 0028 12:28 AM
- 0029 12:29 AM
- 0030 12:30 AM
- 0031 12:31 AM
- 0032 12:32 AM
- 0033 12:33 AM
- 0034 12:34 AM
- 0035 12:35 AM
- 0036 12:36 AM
- 0037 12:37 AM
- 0038 12:38 AM
- 0039 12:39 AM
- 0040 12:40 AM
- 0041 12:41 AM
- 0042 12:42 AM
- 0043 12:43 AM
- 0044 12:44 AM
- 0045 12:45 AM
- 0046 12:46 AM
- 0047 12:47 AM
- 0048 12:48 AM
- 0049 12:49 AM
- 0050 12:50 AM
- 0051 12:51 AM
- 0052 12:52 AM
- 0053 12:53 AM
- 0054 12:54 AM
- 0055 12:55 AM
- 0056 12:56 AM
- 0057 12:57 AM
- 0058 12:58 AM
- 0059 12:59 AM
When You'll See 0031
0031 sits in the first minutes of a new day. Overnight hospital shifts often run 1900–0700, so 0031 (12:31 AM) lands mid-shift — vital-sign rounds, medication passes, and dispatch logs all carry this timestamp. You'll also see 0031 on red-eye flight schedules and 24-hour security reports.
To say it out loud, read the two pairs: "zero thirty-one." In formal military usage you may also hear "zero hundred thirty-one hours."
Frequently Asked Questions
Is 0031 AM or PM?
AM. 0000–0059 is the hour right after midnight: 0031 = 12:31 AM.
How do you say 0031 in military time?
"Zero thirty-one." Whole hours get the "hundred" treatment (0000 is "zero hundred"), but with minutes you read the two pairs.
What is 12:31 AM in military time?
0031. The hour after midnight counts as hour 00, so 12:31 AM becomes 0031.
Is 0031 the same as 0:31?
Yes — same time, two writing styles. Schedules in military format drop the colon (0031); European-style 24-hour clocks keep it (0:31). Both mean 12:31 AM.