What time is 10:21?
👉 10:21 in 24-hour time is 10:21 AM in 12-hour time
10:21 AM in every format
| 12-hour clock | 10:21 AM |
|---|---|
| 24-hour clock | 10:21 |
| Military time | 1021 hours |
| Military pronunciation | ten twenty-one hours |
| ISO 8601 | T10:21:00 |
| In words | Twenty-one minutes past ten |
| Part of the day | Morning |
| Minutes since midnight | 621 |
| Day progress | 43.12% |
How to convert 10:21 to 12-hour time
Hours 01–11 stay the same and take AM: 10:21 → 10:21 AM.
The 10 AM hour is mid-morning: the working day is well under way and many people take a short break or a second coffee.
24-hour to 12-hour chart for 10:00–10:59
| 24-hour | 12-hour |
|---|---|
| 10:00 | 10:00 AM |
| 10:05 | 10:05 AM |
| 10:10 | 10:10 AM |
| 10:15 | 10:15 AM |
| 10:20 | 10:20 AM |
| 10:25 | 10:25 AM |
| 10:30 | 10:30 AM |
| 10:35 | 10:35 AM |
| 10:40 | 10:40 AM |
| 10:45 | 10:45 AM |
| 10:50 | 10:50 AM |
| 10:55 | 10:55 AM |
Questions about What time is 10:21?
What time is 10:21?
10:21 is 10:21 AM. Hours 01–11 stay the same and take AM: 10:21 → 10:21 AM.