0300 at a glance
- 12-hour time
- 3:00 AM
- 24-hour clock
- 03:00
- Say it
- zero three hundred hours
- Part of day
- Night (after midnight)
- Minutes after midnight
- 180
- Minutes until midnight
- 1,260
- Decimal hours
- 3.00
- Share of the day gone
- 12.5%
How to convert 0300 to standard time
- The hour digits are 03. Hours 01 to 11 are the same on both clocks — just drop the leading zero: 3.
- Put a colon before the minutes and add AM: 3:00 AM.
How to say 0300
| Style | How it sounds |
|---|---|
| Military (spoken) | “zero three hundred hours” |
| Short form | “zero three hundred” |
| Radio, digit by digit | “zero three zero zero” |
| Civilian | “three o’clock in the morning” |
| Written 24-hour | 03:00 or 0300 |
On the hour, the minutes are spoken as “hundred”: 0300 is “zero three hundred hours.” The leading zero is spoken too.
0300 Zulu (UTC) in US time zones
Military and aviation schedules give times in Zulu — Coordinated Universal Time — so that everyone works from one clock. When a message says 0300Z, this is the local time across the United States:
| Time zone | Standard time | Daylight time |
|---|---|---|
| Eastern (EST / EDT) | 10:00 PM (previous day) — R | 11:00 PM (previous day) — Q |
| Central (CST / CDT) | 9:00 PM (previous day) — S | 10:00 PM (previous day) — R |
| Mountain (MST / MDT) | 8:00 PM (previous day) — T | 9:00 PM (previous day) — S |
| Pacific (PST / PDT) | 7:00 PM (previous day) — U | 8:00 PM (previous day) — T |
| Alaska (AKST / AKDT) | 6:00 PM (previous day) — V | 7:00 PM (previous day) — U |
| Hawaii (HST) | 5:00 PM (previous day) — W | No daylight time |
The letter after each time is that zone’s military time-zone letter: Eastern standard time is R (Romeo, UTC−5), so 0300Z is 2200R. Daylight time runs from the second Sunday in March to the first Sunday in November; Hawaii and most of Arizona stay on standard time all year.
If 0300 is your local time
- 0300 Eastern is 0800Z in winter (EST) and 0700Z in summer (EDT).
- 0300 Central is 0900Z in winter (CST) and 0800Z in summer (CDT).
- 0300 Mountain is 1000Z in winter (MST) and 0900Z in summer (MDT).
- 0300 Pacific is 1100Z in winter (PST) and 1000Z in summer (PDT).
Times around 0300
| Change | Military | Standard |
|---|---|---|
| −60 min | 0200 | 2:00 AM |
| −45 min | 0215 | 2:15 AM |
| −30 min | 0230 | 2:30 AM |
| −15 min | 0245 | 2:45 AM |
| This time | 0300 | 3:00 AM |
| +15 min | 0315 | 3:15 AM |
| +30 min | 0330 | 3:30 AM |
| +45 min | 0345 | 3:45 AM |
| +60 min | 0400 | 4:00 AM |
Shifts that start at 0300
- An 8-hour shift starting at 0300 ends at 1100 (11:00 AM).
- A 10-hour shift starting at 0300 ends at 1300 (1:00 PM).
- A 12-hour shift starting at 0300 ends at 1500 (3:00 PM).
- To total the hours on a real time card with breaks, use the time card calculator.
0300 in everyday use
- 0300 falls in the overnight hours — the time of night shifts, red-eye flights and early deliveries. Writing it as 0300 instead of 3:00 AM removes any doubt about whether the morning or the evening is meant.
- On the spring-forward Sunday in March, 0300 arrives just one minute after 0159, because the hour from 0200 to 0259 is skipped.
- Military slang for an uncomfortably early start is “zero-dark-thirty” — any time well before dawn, like 0300.
Frequently asked questions
What is 0300 in regular time?
0300 is 3:00 AM in regular 12-hour time.
Is 0300 AM or PM?
0300 is AM. Military times from 0000 to 1159 are AM and times from 1200 to 2359 are PM.
How do you say 0300 in military time?
Say “zero three hundred hours.” In radio procedure each digit is spoken separately, so 0300 can also be read digit by digit.
What is 0300 Zulu in Eastern time?
0300Z is 10:00 PM (previous day) Eastern Standard Time (UTC−5) and 11:00 PM (previous day) Eastern Daylight Time (UTC−4).