What is 1:31 PM in 24-hour time?
👉 1:31 PM is 13:31 in 24-hour time and 1331 in military time
1:31 PM in every format
| 12-hour clock | 1:31 PM |
|---|---|
| 24-hour clock | 13:31 |
| Military time | 1331 hours |
| Military pronunciation | thirteen thirty-one hours |
| ISO 8601 | T13:31:00 |
| In words | Twenty-nine minutes to two |
| Part of the day | Afternoon |
| Minutes since midnight | 811 |
| Day progress | 56.32% |
How to convert 1:31 PM to 24-hour time
For PM times add 12 to the hour (12 PM stays 12): 1:31 PM → 13:31.
The 1 PM hour follows lunch, and many people notice a natural dip in alertness in the early afternoon.
12-hour to 24-hour chart for 1 PM
| 12-hour | 24-hour | Military |
|---|---|---|
| 1:00 PM | 13:00 | 1300 |
| 1:05 PM | 13:05 | 1305 |
| 1:10 PM | 13:10 | 1310 |
| 1:15 PM | 13:15 | 1315 |
| 1:20 PM | 13:20 | 1320 |
| 1:25 PM | 13:25 | 1325 |
| 1:30 PM | 13:30 | 1330 |
| 1:35 PM | 13:35 | 1335 |
| 1:40 PM | 13:40 | 1340 |
| 1:45 PM | 13:45 | 1345 |
| 1:50 PM | 13:50 | 1350 |
| 1:55 PM | 13:55 | 1355 |
Questions about What is 1:31 PM in 24-hour time?
What is 1:31 PM in 24-hour time?
1:31 PM is 13:31. For PM times add 12 to the hour (12 PM stays 12): 1:31 PM → 13:31.