What time is 16:21?
👉 16:21 in 24-hour time is 4:21 PM in 12-hour time
4:21 PM in every format
| 12-hour clock | 4:21 PM |
|---|---|
| 24-hour clock | 16:21 |
| Military time | 1621 hours |
| Military pronunciation | sixteen twenty-one hours |
| ISO 8601 | T16:21:00 |
| In words | Twenty-one minutes past four |
| Part of the day | Afternoon |
| Minutes since midnight | 981 |
| Day progress | 68.12% |
How to convert 16:21 to 12-hour time
Hours 13–23 lose 12 and take PM: 16 − 12 = 4, so 16:21 → 4:21 PM.
The 4 PM hour is late afternoon. U.S. stock markets close at 4:00 PM Eastern Time.
24-hour to 12-hour chart for 16:00–16:59
| 24-hour | 12-hour |
|---|---|
| 16:00 | 4:00 PM |
| 16:05 | 4:05 PM |
| 16:10 | 4:10 PM |
| 16:15 | 4:15 PM |
| 16:20 | 4:20 PM |
| 16:25 | 4:25 PM |
| 16:30 | 4:30 PM |
| 16:35 | 4:35 PM |
| 16:40 | 4:40 PM |
| 16:45 | 4:45 PM |
| 16:50 | 4:50 PM |
| 16:55 | 4:55 PM |
Questions about What time is 16:21?
What time is 16:21?
16:21 is 4:21 PM. Hours 13–23 lose 12 and take PM: 16 − 12 = 4, so 16:21 → 4:21 PM.