0030 at a glance
- 12-hour time
- 12:30 AM
- 24-hour clock
- 00:30
- Say it
- zero zero thirty hours
- Part of day
- Night (after midnight)
- Minutes after midnight
- 30
- Minutes until midnight
- 1,410
- Decimal hours
- 0.50
- Share of the day gone
- 2.08%
How to convert 0030 to standard time
- The hour digits are 00, the first hour after midnight. On a 12-hour clock that hour is called 12, not 0.
- Keep the minutes (30) and add AM: 12:30 AM.
- It is 30 minutes after midnight, so it belongs to the new day, not the previous evening.
How to say 0030
| Style | How it sounds |
|---|---|
| Military (spoken) | “zero zero thirty hours” |
| Radio, digit by digit | “zero zero three zero” |
| Civilian | “half past midnight” |
| Written 24-hour | 00:30 or 0030 |
Off the hour, say the hour pair and then the minutes: 00 → “zero zero”, 30 → “thirty.” Adding “hours” at the end is standard in military speech but optional elsewhere.
0030 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 0030Z, this is the local time across the United States:
| Time zone | Standard time | Daylight time |
|---|---|---|
| Eastern (EST / EDT) | 7:30 PM (previous day) — R | 8:30 PM (previous day) — Q |
| Central (CST / CDT) | 6:30 PM (previous day) — S | 7:30 PM (previous day) — R |
| Mountain (MST / MDT) | 5:30 PM (previous day) — T | 6:30 PM (previous day) — S |
| Pacific (PST / PDT) | 4:30 PM (previous day) — U | 5:30 PM (previous day) — T |
| Alaska (AKST / AKDT) | 3:30 PM (previous day) — V | 4:30 PM (previous day) — U |
| Hawaii (HST) | 2:30 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 0030Z is 1930R. 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 0030 is your local time
- 0030 Eastern is 0530Z in winter (EST) and 0430Z in summer (EDT).
- 0030 Central is 0630Z in winter (CST) and 0530Z in summer (CDT).
- 0030 Mountain is 0730Z in winter (MST) and 0630Z in summer (MDT).
- 0030 Pacific is 0830Z in winter (PST) and 0730Z in summer (PDT).
Times around 0030
| Change | Military | Standard |
|---|---|---|
| −60 min | 2330 | 11:30 PM (previous day) |
| −45 min | 2345 | 11:45 PM (previous day) |
| −30 min | 0000 | 12:00 AM |
| −15 min | 0015 | 12:15 AM |
| This time | 0030 | 12:30 AM |
| +15 min | 0045 | 12:45 AM |
| +30 min | 0100 | 1:00 AM |
| +45 min | 0115 | 1:15 AM |
| +60 min | 0130 | 1:30 AM |
Shifts that start at 0030
- An 8-hour shift starting at 0030 ends at 0830 (8:30 AM).
- A 10-hour shift starting at 0030 ends at 1030 (10:30 AM).
- A 12-hour shift starting at 0030 ends at 1230 (12:30 PM).
- To total the hours on a real time card with breaks, use the time card calculator.
0030 in everyday use
- 0030 falls in the overnight hours — the time of night shifts, red-eye flights and early deliveries. Writing it as 0030 instead of 12:30 AM removes any doubt about whether the morning or the evening is meant.
- A common slip is calling 0030 “12:30 PM.” It is 12:30 AM: the hour after midnight, not after noon.
Frequently asked questions
What is 0030 in regular time?
0030 is 12:30 AM in regular 12-hour time.
Is 0030 AM or PM?
0030 is AM. Military times from 0000 to 1159 are AM and times from 1200 to 2359 are PM.
How do you say 0030 in military time?
Say “zero zero thirty hours.” In radio procedure each digit is spoken separately, so 0030 can also be read digit by digit.
What is 0030 Zulu in Eastern time?
0030Z is 7:30 PM (previous day) Eastern Standard Time (UTC−5) and 8:30 PM (previous day) Eastern Daylight Time (UTC−4).