What time is 01:38?

01:38 = 1:38 AM

01:38 on a 24-hour clock is is 1:38 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 01:38 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
01:38 1:38 AM
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01:38 Time Conversion Chart

24 Hour Clock 12 Hour Clock (AM/PM) Military Time
01:38 1:38 0138
01:43 1:43 0143
01:48 1:48 0148
01:53 1:53 0153
01:58 1:58 0158
02:03 2:03 0203
02:08 2:08 0208
02:13 2:13 0213
02:18 2:18 0218
02:23 2:23 0223
02:28 2:28 0228
02:33 2:33 0233
02:38 2:38 0238
02:43 2:43 0243
02:48 2:48 0248
02:53 2:53 0253

How to convert 01:38 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 01:38 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: 1:38 AM