0345 at a glance
- 12-hour time
- 3:45 AM
- 24-hour clock
- 03:45
- Say it
- zero three forty-five hours
- Part of day
- Night (after midnight)
- Minutes after midnight
- 225
- Minutes until midnight
- 1,215
- Decimal hours
- 3.75
- Share of the day gone
- 15.63%
How to convert 0345 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: 3:45 AM.
How to say 0345
| Style | How it sounds |
|---|---|
| Military (spoken) | “zero three forty-five hours” |
| Radio, digit by digit | “zero three four five” |
| Civilian | “quarter to four in the morning” |
| Written 24-hour | 03:45 or 0345 |
Off the hour, say the hour pair and then the minutes: 03 → “zero three”, 45 → “forty-five.” Adding “hours” at the end is standard in military speech but optional elsewhere.
0345 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 0345Z, this is the local time across the United States:
| Time zone | Standard time | Daylight time |
|---|---|---|
| Eastern (EST / EDT) | 10:45 PM (previous day) — R | 11:45 PM (previous day) — Q |
| Central (CST / CDT) | 9:45 PM (previous day) — S | 10:45 PM (previous day) — R |
| Mountain (MST / MDT) | 8:45 PM (previous day) — T | 9:45 PM (previous day) — S |
| Pacific (PST / PDT) | 7:45 PM (previous day) — U | 8:45 PM (previous day) — T |
| Alaska (AKST / AKDT) | 6:45 PM (previous day) — V | 7:45 PM (previous day) — U |
| Hawaii (HST) | 5:45 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 0345Z is 2245R. 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 0345 is your local time
- 0345 Eastern is 0845Z in winter (EST) and 0745Z in summer (EDT).
- 0345 Central is 0945Z in winter (CST) and 0845Z in summer (CDT).
- 0345 Mountain is 1045Z in winter (MST) and 0945Z in summer (MDT).
- 0345 Pacific is 1145Z in winter (PST) and 1045Z in summer (PDT).
Times around 0345
| Change | Military | Standard |
|---|---|---|
| −60 min | 0245 | 2:45 AM |
| −45 min | 0300 | 3:00 AM |
| −30 min | 0315 | 3:15 AM |
| −15 min | 0330 | 3:30 AM |
| This time | 0345 | 3:45 AM |
| +15 min | 0400 | 4:00 AM |
| +30 min | 0415 | 4:15 AM |
| +45 min | 0430 | 4:30 AM |
| +60 min | 0445 | 4:45 AM |
Shifts that start at 0345
- An 8-hour shift starting at 0345 ends at 1145 (11:45 AM).
- A 10-hour shift starting at 0345 ends at 1345 (1:45 PM).
- A 12-hour shift starting at 0345 ends at 1545 (3:45 PM).
- To total the hours on a real time card with breaks, use the time card calculator.
0345 in everyday use
- 0345 falls in the overnight hours — the time of night shifts, red-eye flights and early deliveries. Writing it as 0345 instead of 3:45 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 0345.
Frequently asked questions
What is 0345 in regular time?
0345 is 3:45 AM in regular 12-hour time.
Is 0345 AM or PM?
0345 is AM. Military times from 0000 to 1159 are AM and times from 1200 to 2359 are PM.
How do you say 0345 in military time?
Say “zero three forty-five hours.” In radio procedure each digit is spoken separately, so 0345 can also be read digit by digit.
What is 0345 Zulu in Eastern time?
0345Z is 10:45 PM (previous day) Eastern Standard Time (UTC−5) and 11:45 PM (previous day) Eastern Daylight Time (UTC−4).