0000 Military Time
0000 = 12:00 AM
Spoken aloud: “zero hundred hours”
Convert another time
Type in either box — it converts as you type. Accepts 1300, 13:00, 1:00 PM, 0000 and 2400.
What 0000 means
0000 is 12:00 AM. Military time writes the hour and the minutes as four digits with no colon, so the 00 is the hour and the 00 is the minutes. Zero is midnight, the moment a new day begins.
Midnight, and the start of a new day. Rosters closing out the previous day often write 2400 instead, but a new day always begins at 0000.
Saying 0000 out loud
You say “zero hundred hours”. The word “hundred” is there because the minutes are zero; if it were 0030 you would say “zero thirty hours” instead, and at 0005 it becomes “zero oh five hours” — minutes below ten get an “oh”.
Common questions about 0000
What time is 0000 in regular time?
0000 is 12:00 AM on a 12-hour clock. The first two digits are the hour and the last two are the minutes, so 0000 means 12:00 AM exactly.
How do you say 0000 out loud?
0000 is spoken “zero hundred hours”. The word “hundred” is used because the minutes are zero; at 0030 you would say “zero thirty hours” instead.
Is 0000 AM or PM?
0000 is AM — it converts to 12:00 AM. Military time has no AM or PM at all: every hour from 0000 to 2300 has its own number, which is the whole point of the format.