01:55 on a 24-hour clock is is 1:55 AM on a 12-hour clock. This system is used 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 01:55 through a time chart, automated converter, and how to convert the 24 hour clock into a 12-hour AM/PM system by hand.
| 24-hour format | 12-hour format |
| 01:55 | 1:55 AM |
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 Clock | 12 Hour Clock (AM/PM) | Military Time |
|---|---|---|
| 01:55 | 1:55 | 0155 |
| 02:00 | 2:00 | 0200 |
| 02:05 | 2:05 | 0205 |
| 02:10 | 2:10 | 0210 |
| 02:15 | 2:15 | 0215 |
| 02:20 | 2:20 | 0220 |
| 02:25 | 2:25 | 0225 |
| 02:30 | 2:30 | 0230 |
| 02:35 | 2:35 | 0235 |
| 02:40 | 2:40 | 0240 |
| 02:45 | 2:45 | 0245 |
| 02:50 | 2:50 | 0250 |
| 02:55 | 2:55 | 0255 |
| 03:00 | 3:00 | 0300 |
| 03:05 | 3:05 | 0305 |
| 03:10 | 3:10 | 0310 |
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 01:55 to 12-hour time.
24-hour time and military time are very similar! See our page on military time for more information.