What is 1:31 AM in 24-hour time?
👉 1:31 AM is 01:31 in 24-hour time and 0131 in military time
1:31 AM in every format
| 12-hour clock | 1:31 AM |
|---|---|
| 24-hour clock | 01:31 |
| Military time | 0131 hours |
| Military pronunciation | zero one thirty-one hours |
| ISO 8601 | T01:31:00 |
| In words | Twenty-nine minutes to two |
| Part of the day | Night |
| Minutes since midnight | 91 |
| Day progress | 6.32% |
How to convert 1:31 AM to 24-hour time
For AM times keep the hour (12 AM becomes 00): 1:31 AM → 01:31.
The 1 AM hour is deep in the night. Night-shift workers, bakers and flight crews are among the few people routinely awake.
12-hour to 24-hour chart for 1 AM
| 12-hour | 24-hour | Military |
|---|---|---|
| 1:00 AM | 01:00 | 0100 |
| 1:05 AM | 01:05 | 0105 |
| 1:10 AM | 01:10 | 0110 |
| 1:15 AM | 01:15 | 0115 |
| 1:20 AM | 01:20 | 0120 |
| 1:25 AM | 01:25 | 0125 |
| 1:30 AM | 01:30 | 0130 |
| 1:35 AM | 01:35 | 0135 |
| 1:40 AM | 01:40 | 0140 |
| 1:45 AM | 01:45 | 0145 |
| 1:50 AM | 01:50 | 0150 |
| 1:55 AM | 01:55 | 0155 |
Questions about What is 1:31 AM in 24-hour time?
What is 1:31 AM in 24-hour time?
1:31 AM is 01:31. For AM times keep the hour (12 AM becomes 00): 1:31 AM → 01:31.