What is 4:21 PM in 24-hour time?
👉 4:21 PM is 16:21 in 24-hour time and 1621 in military 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 4:21 PM to 24-hour time
For PM times add 12 to the hour (12 PM stays 12): 4:21 PM → 16:21.
The 4 PM hour is late afternoon. U.S. stock markets close at 4:00 PM Eastern Time.
12-hour to 24-hour chart for 4 PM
| 12-hour | 24-hour | Military |
|---|---|---|
| 4:00 PM | 16:00 | 1600 |
| 4:05 PM | 16:05 | 1605 |
| 4:10 PM | 16:10 | 1610 |
| 4:15 PM | 16:15 | 1615 |
| 4:20 PM | 16:20 | 1620 |
| 4:25 PM | 16:25 | 1625 |
| 4:30 PM | 16:30 | 1630 |
| 4:35 PM | 16:35 | 1635 |
| 4:40 PM | 16:40 | 1640 |
| 4:45 PM | 16:45 | 1645 |
| 4:50 PM | 16:50 | 1650 |
| 4:55 PM | 16:55 | 1655 |
Questions about What is 4:21 PM in 24-hour time?
What is 4:21 PM in 24-hour time?
4:21 PM is 16:21. For PM times add 12 to the hour (12 PM stays 12): 4:21 PM → 16:21.