What time is 01:51?

01:51 = 1:51 AM

01:51 on a 24-hour clock is is 1:51 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 01:51 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
01:51 1:51 AM
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01:51 Time Conversion Chart

24 Hour Clock 12 Hour Clock (AM/PM) Military Time
01:51 1:51 0151
01:56 1:56 0156
02:01 2:01 0201
02:06 2:06 0206
02:11 2:11 0211
02:16 2:16 0216
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

How to convert 01:51 from 24-Hour Time to 12-Hour Standard Time

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 01:51 to 12-hour time.

  1. First, determine whether or not 1 is greater than 12 (recall that this is one of the distinctions of the 12-hour clock, there are no hours "greater" than 12 on it)
  2. Since 1 is lower than 12, there isn't much to do! We can just add the "AM" designation to the end of the time: 1:51 AM