# What is 2100 (21:00) Military Time? (9:00 PM Standard Time)

Curious about the conversion of 2100 military time? If you are just here for a quick answer, then the equivalent standard AM/ PM time is 9 PM. If you are interested in learning how to convert military time as needed then read on. Below you will find a walk-through that shows you how to do simple calculations that will start you on the path of a military time conversion genius!

Converting military time is easiest to learn if you separate the day in the time BEFORE NOON and the time AFTERNOON. Once standard time reaches 12:00 PM (1200 military time) it becomes a little more difficult to translate into military time.

That being said, if it is 2100 military time or “twenty-one hundred hours”, simply subtract 1200, add a colon between the hours and minutes, and attach a PM to the end. You add a PM to the end of any military time 1200 or greater.

### What is 2100 Military Time in Regular Standard AM/PM Time?

A great tip to commit to memory: Anytime you wish to convert military time to standard time that is after 12 PM(noon or 1200), simply subtract 1200, add a colon in between the hours and minutes, and add a PM after it.

Step 1. (subtract 1200)
2100 – 1200 = 900

Step 2. (add colon “:” between hours & minutes)
900 + : = 9:00