How do you say 9:00 in military time?

Understanding Military Time

When switching over to a 24-hour clock used by the military and emergency services, telling time becomes much more straightforward because you can completely drop the terms AM and PM. For instance, if you are wondering how to express 9:00 in this format, the answer depends entirely on whether you mean morning or evening.

For morning hours, the conversion is simple. 9:00 AM in military time is written and spoken as 0900—pronounced "zero nine hundred hours." You simply keep the single-digit hour preceded by a zero, drop the colon, and append the word "hundred."

On the other hand, evening hours require adding 12 hours to the standard time. Therefore, 9:00 PM translates to 2100 (twenty-one hundred hours). This continuous counting from 0000 at midnight up to 2359 eliminates any possible confusion between morning and night schedules.