0330 at a glance
- 12-hour time
- 3:30 AM
- 24-hour clock
- 03:30
- Say it
- zero three thirty hours
- Part of day
- Night (after midnight)
- Minutes after midnight
- 210
- Minutes until midnight
- 1,230
- Decimal hours
- 3.50
- Share of the day gone
- 14.58%
How to convert 0330 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: 3:30 AM.
How to say 0330
| Style | How it sounds |
|---|---|
| Military (spoken) | “zero three thirty hours” |
| Radio, digit by digit | “zero three three zero” |
| Civilian | “half past three in the morning” |
| Written 24-hour | 03:30 or 0330 |
Off the hour, say the hour pair and then the minutes: 03 → “zero three”, 30 → “thirty.” Adding “hours” at the end is standard in military speech but optional elsewhere.
0330 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 0330Z, this is the local time across the United States:
| Time zone | Standard time | Daylight time |
|---|---|---|
| Eastern (EST / EDT) | 10:30 PM (previous day) — R | 11:30 PM (previous day) — Q |
| Central (CST / CDT) | 9:30 PM (previous day) — S | 10:30 PM (previous day) — R |
| Mountain (MST / MDT) | 8:30 PM (previous day) — T | 9:30 PM (previous day) — S |
| Pacific (PST / PDT) | 7:30 PM (previous day) — U | 8:30 PM (previous day) — T |
| Alaska (AKST / AKDT) | 6:30 PM (previous day) — V | 7:30 PM (previous day) — U |
| Hawaii (HST) | 5:30 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 0330Z is 2230R. 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 0330 is your local time
- 0330 Eastern is 0830Z in winter (EST) and 0730Z in summer (EDT).
- 0330 Central is 0930Z in winter (CST) and 0830Z in summer (CDT).
- 0330 Mountain is 1030Z in winter (MST) and 0930Z in summer (MDT).
- 0330 Pacific is 1130Z in winter (PST) and 1030Z in summer (PDT).
Times around 0330
| Change | Military | Standard |
|---|---|---|
| −60 min | 0230 | 2:30 AM |
| −45 min | 0245 | 2:45 AM |
| −30 min | 0300 | 3:00 AM |
| −15 min | 0315 | 3:15 AM |
| This time | 0330 | 3:30 AM |
| +15 min | 0345 | 3:45 AM |
| +30 min | 0400 | 4:00 AM |
| +45 min | 0415 | 4:15 AM |
| +60 min | 0430 | 4:30 AM |
Shifts that start at 0330
- An 8-hour shift starting at 0330 ends at 1130 (11:30 AM).
- A 10-hour shift starting at 0330 ends at 1330 (1:30 PM).
- A 12-hour shift starting at 0330 ends at 1530 (3:30 PM).
- To total the hours on a real time card with breaks, use the time card calculator.
0330 in everyday use
- 0330 falls in the overnight hours — the time of night shifts, red-eye flights and early deliveries. Writing it as 0330 instead of 3:30 AM removes any doubt about whether the morning or the evening is meant.
- Military slang for an uncomfortably early start is “zero-dark-thirty” — any time well before dawn, like 0330.
Frequently asked questions
What is 0330 in regular time?
0330 is 3:30 AM in regular 12-hour time.
Is 0330 AM or PM?
0330 is AM. Military times from 0000 to 1159 are AM and times from 1200 to 2359 are PM.
How do you say 0330 in military time?
Say “zero three thirty hours.” In radio procedure each digit is spoken separately, so 0330 can also be read digit by digit.
What is 0330 Zulu in Eastern time?
0330Z is 10:30 PM (previous day) Eastern Standard Time (UTC−5) and 11:30 PM (previous day) Eastern Daylight Time (UTC−4).