0100 Military Time

0100 = 1:00 AM. Say it: “zero one hundred hours.”

1:00 AM
zero one hundred hours

How 0100 converts to 1:00 AM

The hour 01 is in 01–11, so it's AM: keep the hour (1), drop the leading zero; minutes (0) don't change. Result: 1:00 AM.

Deep night: overnight stock crews, dispatch desks, and the last leg of long-haul routes. If you log shifts in this format, the time card calculator accepts 24-hour times directly.

0100 at a glance

24-hour (military)0100
12-hour (regular)1:00 AM
Spoken“zero one hundred hours”
Part of dayMorning (AM)
On a timesheet01:00

A shift that starts at 0100

An 8-hour shift starting at 0100 ends at 0900 (clock out 9:00 AM). A 12-hour shift — the nursing standard — runs to 1300. Working from 0100 to 1700 is 16 hours; subtract an unpaid 30-minute lunch and the payable total is 15.5.

0100 — questions people ask

What is 0100 military time in 12-hour format?
0100 military time = 1:00 AM. The hour 01 is in 01–11, so it's AM: keep the hour (1), drop the leading zero; minutes (0) don't change. Result: 1:00 AM.
How do you say 0100?
Say the hour, then the minutes: “zero one hundred hours.” In casual settings many people just say “1.”
Is 0100 AM or PM?
AM — hours 0100–1159 are morning hours, so 0100 = 1:00 AM.