How to convert 0400 to standard time
Military times from 0100 to 1159 are morning times, so the conversion is easy: drop the leading zero, add a colon before the last two digits and write AM. 0400 → 4:00 → 4:00 AM.
Going the other way, any AM hour from 1 to 11 just gets a leading zero (if needed) and two zeros: 4 AM = 0400.
Minutes in the 0400 hour
| Military | 24-hour | 12-hour (AM/PM) |
|---|---|---|
| 0400 | 04:00 | 4:00 AM |
| 0405 | 04:05 | 4:05 AM |
| 0410 | 04:10 | 4:10 AM |
| 0415 | 04:15 | 4:15 AM |
| 0420 | 04:20 | 4:20 AM |
| 0430 | 04:30 | 4:30 AM |
| 0440 | 04:40 | 4:40 AM |
| 0445 | 04:45 | 4:45 AM |
| 0450 | 04:50 | 4:50 AM |
| 0455 | 04:55 | 4:55 AM |
Frequently asked questions
Is 0400 AM or PM?
0400 is AM. Military times below 1200 are AM.
How do you say 0400 in military time?
Say zero four hundred hours. Military and aviation users read the four digits as hours plus “hundred”, and add the word “hours” at the end.
What is 0400 in 12-hour format?
0400 in 12-hour format is 4:00 AM.
What time is 0400 plus 8 hours?
0400 plus 8 hours is 1200, which is 12:00 PM.
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