What is 3:59 AM in 24-hour time?
👉 3:59 AM is 03:59 in 24-hour time and 0359 in military time
3:59 AM in every format
| 12-hour clock | 3:59 AM |
|---|---|
| 24-hour clock | 03:59 |
| Military time | 0359 hours |
| Military pronunciation | zero three fifty-nine hours |
| ISO 8601 | T03:59:00 |
| In words | One minute to four |
| Part of the day | Night |
| Minutes since midnight | 239 |
| Day progress | 16.6% |
How to convert 3:59 AM to 24-hour time
For AM times keep the hour (12 AM becomes 00): 3:59 AM → 03:59.
The 3 AM hour is the quietest part of the night for traffic and phone networks, which is why maintenance windows are often scheduled now.
12-hour to 24-hour chart for 3 AM
| 12-hour | 24-hour | Military |
|---|---|---|
| 3:00 AM | 03:00 | 0300 |
| 3:05 AM | 03:05 | 0305 |
| 3:10 AM | 03:10 | 0310 |
| 3:15 AM | 03:15 | 0315 |
| 3:20 AM | 03:20 | 0320 |
| 3:25 AM | 03:25 | 0325 |
| 3:30 AM | 03:30 | 0330 |
| 3:35 AM | 03:35 | 0335 |
| 3:40 AM | 03:40 | 0340 |
| 3:45 AM | 03:45 | 0345 |
| 3:50 AM | 03:50 | 0350 |
| 3:55 AM | 03:55 | 0355 |
Questions about What is 3:59 AM in 24-hour time?
What is 3:59 AM in 24-hour time?
3:59 AM is 03:59. For AM times keep the hour (12 AM becomes 00): 3:59 AM → 03:59.