What is 0431 in Military Time?
0431 military time equals
4:31 AM
How to Convert 0431
0431 falls in the morning half of the 24-hour clock, so the rule is: the hour matches standard time — just add AM.
4 = 4 → 4:31 AM — morning hours match directly (the minutes, 31, stay exactly the same).
Going the other way: 4:31 AM = 0431 — drop the AM and pad single-digit hours with a leading zero. Or skip the math — type 0431 into the military time converter and convert any time instantly on the home page.
Times Around 0431
See the whole day on one page: Military Time Chart or view the full 24-hour chart.
All Times From 0400 to 0459
Every minute of this hour has its own quick answer page:
- 0400 4:00 AM
- 0401 4:01 AM
- 0402 4:02 AM
- 0403 4:03 AM
- 0404 4:04 AM
- 0405 4:05 AM
- 0406 4:06 AM
- 0407 4:07 AM
- 0408 4:08 AM
- 0409 4:09 AM
- 0410 4:10 AM
- 0411 4:11 AM
- 0412 4:12 AM
- 0413 4:13 AM
- 0414 4:14 AM
- 0415 4:15 AM
- 0416 4:16 AM
- 0417 4:17 AM
- 0418 4:18 AM
- 0419 4:19 AM
- 0420 4:20 AM
- 0421 4:21 AM
- 0422 4:22 AM
- 0423 4:23 AM
- 0424 4:24 AM
- 0425 4:25 AM
- 0426 4:26 AM
- 0427 4:27 AM
- 0428 4:28 AM
- 0429 4:29 AM
- 0430 4:30 AM
- 0431 4:31 AM
- 0432 4:32 AM
- 0433 4:33 AM
- 0434 4:34 AM
- 0435 4:35 AM
- 0436 4:36 AM
- 0437 4:37 AM
- 0438 4:38 AM
- 0439 4:39 AM
- 0440 4:40 AM
- 0441 4:41 AM
- 0442 4:42 AM
- 0443 4:43 AM
- 0444 4:44 AM
- 0445 4:45 AM
- 0446 4:46 AM
- 0447 4:47 AM
- 0448 4:48 AM
- 0449 4:49 AM
- 0450 4:50 AM
- 0451 4:51 AM
- 0452 4:52 AM
- 0453 4:53 AM
- 0454 4:54 AM
- 0455 4:55 AM
- 0456 4:56 AM
- 0457 4:57 AM
- 0458 4:58 AM
- 0459 4:59 AM
When You'll See 0431
Pre-dawn. Early shift starts like 0431 (4:31 AM) appear on hospital schedules, airline crew reports, and delivery manifests — the day's first wave of workers clocking in before sunrise.
To say it out loud, read the two pairs: "zero four thirty-one." In formal military usage you may also hear "zero four hundred thirty-one hours."
Frequently Asked Questions
Is 0431 AM or PM?
AM. Any military time from 0000 to 1159 is before noon. 0431 = 4:31 AM.
How do you say 0431 in military time?
"Zero four thirty-one." Whole hours get the "hundred" treatment (0400 is "zero four hundred"), but with minutes you read the two pairs.
What is 4:31 AM in military time?
0431. Morning hours match directly: drop the AM and pad to four digits.
Is 0431 the same as 4:31?
Yes — same time, two writing styles. Schedules in military format drop the colon (0431); European-style 24-hour clocks keep it (4:31). Both mean 4:31 AM.