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Free Military Time Calculator

Time zones

Military Time Zone Converter

A military time zone converter moves a 24-hour time from one time zone to another through Coordinated Universal Time (UTC), called Zulu time: 1400 Eastern Standard Time is 1900Z and 1100 Pacific. Daylight saving time is applied automatically.

Converted time

1100 HRS

11:00 AM · same day

Uses today's date, so daylight saving time is applied automatically.

Live military clock

Local

Your local time

----:--HRS

--:-- -- · —

Time zone

Midnight

0000

12:00 AM

Noon

1200

12:00 PM

Military time updates every second in the time zone you choose.

How to Convert Military Time Between Time Zones

To convert military time between time zones, convert the time to Zulu (UTC) first, then apply the target zone’s offset.

  1. Find both offsets: Eastern Standard Time is UTC−5, Pacific Standard Time is UTC−8.
  2. Convert to Zulu: subtract the source offset. 1400 − (−5) = 1900Z.
  3. Convert to the target zone: add the target offset. 1900 + (−8) = 1100 Pacific.
  4. Check the day: a result above 2359 is the next day, and a result below 0000 is the previous day.

Military Time Zone Letters (A–Z)

Military time zones use 25 letters: Z for UTC, A to M for zones east of UTC and N to Y for zones west of UTC.Each letter is spoken with its NATO phonetic name, so 0600R is “zero six hundred Romeo,” 6:00 AM Eastern Standard Time. The International Civil Aviation Organization (ICAO) phonetic names keep letters clear over radio.

LetterNameOffsetLetterNameOffset
ZZuluUTC±0NNovemberUTC−1
AAlphaUTC+1OOscarUTC−2
BBravoUTC+2PPapaUTC−3
CCharlieUTC+3QQuebecUTC−4
DDeltaUTC+4RRomeoUTC−5
EEchoUTC+5SSierraUTC−6
FFoxtrotUTC+6TTangoUTC−7
GGolfUTC+7UUniformUTC−8
HHotelUTC+8VVictorUTC−9
IIndiaUTC+9WWhiskeyUTC−10
KKiloUTC+10XX-rayUTC−11
LLimaUTC+11YYankeeUTC−12
MMikeUTC+12

U.S. Time Zones in Military Time

Each U.S. time zone has one military letter for standard time and another for daylight saving time. Eastern Standard Time is R (Romeo); Eastern Daylight Time is Q (Quebec).

ZoneStandardLetterDaylightLetter
EasternESTR (Romeo), UTC−5EDTQ (Quebec), UTC−4
CentralCSTS (Sierra), UTC−6CDTR (Romeo), UTC−5
MountainMSTT (Tango), UTC−7MDTS (Sierra), UTC−6
PacificPSTU (Uniform), UTC−8PDTT (Tango), UTC−7
AlaskaAKSTV (Victor), UTC−9AKDTU (Uniform), UTC−8
HawaiiHSTW (Whiskey), UTC−10—No daylight saving

When it is 1200 Eastern, it is 1100 Central, 1000 Mountain and 0900 Pacific all year.

What Is Zulu Time?

Zulu time is Coordinated Universal Time (UTC), the time at the Prime Meridian with a zero offset. Greenwich Mean Time (GMT) shows the same clock time. Pilots, ships, weather services and deployed units use Zulu so every station shares one reference, written with a trailing Z: 1430Z.

What Does J (Juliet) Mean?

J (Juliet) means local time, the time zone of the person writing. 0800J is 8:00 AM wherever the unit is, which is why J has no fixed offset in the letter chart.

Daylight Saving Time and Military Time

Daylight saving time moves U.S. zones 1 hour closer to Zulu from the second Sunday in March to the first Sunday in November. Eastern time is UTC−5 in winter and UTC−4 in summer, so 1200 Eastern is 1700Z in January and 1600Z in July. Hawaii and most of Arizona do not observe daylight saving time.

Half-Hour Time Zones

Half-hour time zones have no single military letter. India Standard Time is UTC+5:30 and Newfoundland Standard Time is UTC−3:30. Convert these zones through Zulu with the exact offset: 1200Z is 1730 in India.

Who Uses This Tool?

4 groups of people use this tool most:

  • Pilots and flight crews

    Convert local departure times to Zulu (UTC) for flight plans.

  • Military families

    Plan calls with relatives deployed in other time zones.

  • Remote and global teams

    Schedule meetings across U.S. and international zones.

  • Radio operators

    Log contacts in UTC, as amateur and military radio practice requires.

Military Time Zone FAQ

What is Zulu time?

Zulu time is Coordinated Universal Time (UTC), the time at the Prime Meridian with no offset. The military writes it with a Z: 1430Z means 1430 UTC.

What is 1400 Eastern in Pacific time?

1400 Eastern is 1100 Pacific. Pacific time is 3 hours behind Eastern all year, during both standard and daylight saving time.

What military time zone letter is EST?

Eastern Standard Time (EST) is R (Romeo), UTC−5. Eastern Daylight Time (EDT) is Q (Quebec), UTC−4.

Why is there no J time zone?

J (Juliet) means local time, the time wherever the writer is. 0800J is 8:00 AM local time, so J has no fixed UTC offset.

Is military time a time zone?

No, military time is a 24-hour format, not a time zone. 1400 in New York and 1400 in Los Angeles are 3 hours apart, so a zone letter or a conversion is still needed.

Does the converter handle daylight saving time?

Yes, the converter uses today’s date and each zone’s current daylight saving rules, so EST/EDT and PST/PDT switch automatically.