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# How to Calculate Railway Time?

How do you calcuate railway time (convert from 24 hour to 12 hour time)?

## How to Convert from 24 Hour to 12 Hour Time?

We normally use 12-hour clock system. Some departments use 24-hour clock system because they do not use a.m. and p.m. times. Likewise Railway department use 24-hour clock system. In this tutorial we will see how to calculate railway time or how to convert from 24 hour to 12 hour time.

Step 1: Converting first 12 hours of 24-hour time to 12-hour time.
00:00 is equal to 12:00 AM in 24 hour time. Likewise, rest of the hours between 00:00 and 12:00 is equal to the hours between 12:00 AM and 12:00 PM on the 12-hour clock.

Example :
00:00 = 12:00 AM
01:00 = 1:00 AM
02:00 = 2:00 AM
03:00 = 3:00 AM
04:00 = 4:00 AM

Step 2:
Converting second 12 hours of 24-hour time to 12-hour time.
If a time shows 12:00 or greater for the hour, subtract 12 from the hours to get you the time in PM.

Example :
13:00 - 12:00 = 1:00 PM
14:00 - 12:00 = 2:00 PM
15:00 - 12:00 = 3:00 PM
16:00 - 12:00 = 4:00 PM
17:00 - 12:00 = 5:00 PM

because they do not use a.m. and p.m. times.
railways, Airlines, etc use 24-hour clock system