02:21 is 2:21 AM on a 12-hour clock and "02:21 Hours" in Military Time. We use this system throughout the world (not just the military) and leverages a 24-hour time clock rather than the 12-hour AM/PM system known to most English-speaking countries. Below are ways to convert 02:21 through a time chart, automated calculator, and ways to convert by hand.
24-hour format | 12-hour format |
---|---|
02:21 | 2:21 AM |
A quick cheatsheet for all time conversions like 2:21 AM. Click the clock. Select your time. We'll highlight the row for the time you choose.
It is easy to convert from 24-hour time to 12-hour time once you know a few tricks. The primary difference between the two is that the hours in a 24-hour clock go all the way up to 23 (from 0 to 23). In a 12-hour clock, the hour resets to 1 after noon (midday). Follow the steps below to convert 02:21 to 12-hour time.
24-hour time is used in aviation, military, meteorology, logistics, and other fields. The 12-hour clock is only used in 18 countries globally, including the United States and Canada. 24-hour time and military time are very similar! See our military time converter for more information.
24 Hour Clock | 12 Hour Clock (AM/PM) | Military Time |
---|---|---|
02:21 | 2:21 | 0221 |
02:26 | 2:26 | 0226 |
02:31 | 2:31 | 0231 |
02:36 | 2:36 | 0236 |
02:41 | 2:41 | 0241 |
02:46 | 2:46 | 0246 |
02:51 | 2:51 | 0251 |
02:56 | 2:56 | 0256 |
03:01 | 3:01 | 0301 |
03:06 | 3:06 | 0306 |
03:11 | 3:11 | 0311 |
03:16 | 3:16 | 0316 |
03:21 | 3:21 | 0321 |
03:26 | 3:26 | 0326 |
03:31 | 3:31 | 0331 |
03:36 | 3:36 | 0336 |