Military – NATO – Letter Timezones


The basis for this is Z – Zulu time – Zero meridian time – the same as UTC It’s a convention to assign letters to time zones, where Z= Zero meridian, and Zulu is the word that represents the letter Z, when it’s used in communication. It is sometimes used in the US Military and NATO in conjunction with 24 hour clocks, and is also popular to use in movies to reference time.

Other letters/words are used for other time zones than UTC, most based on the right or reverse order of the Alphabet. Note that ‘J’ is skipped (‘J’ – Juliet refers to current local time of the observer). There are 25 time zones defined here, but 26 letters in the English alphabet.

The following table lists the Military time zone abbreviations.

AbbreviationFull nameOther abbreviationsTimezone
ZZulu Time Zone UTC
YYankee Time Zone UTC – 12 hours
XX-ray Time Zone UTC – 11 hours
WWhiskey Time Zone UTC – 10 hours
VVictor Time Zone UTC – 9 hours
UUniform Time Zone UTC – 8 hours
TTango Time Zone UTC – 7 hours
SSierra Time Zone UTC – 6 hours
RRomeo Time Zone UTC – 5 hours
QQuebec Time Zone UTC – 4 hours
PPapa Time Zone UTC – 3 hours
OOscar Time Zone UTC – 2 hours
NNovember Time Zone UTC – 1 hour
AAlpha Time Zone UTC + 1 hour
BBravo Time Zone UTC + 2 hours
CCharlie Time Zone UTC + 3 hours
DDelta Time Zone UTC + 4 hours
EEcho Time Zone UTC + 5 hours
FFoxtrot Time Zone UTC + 6 hours
GGolf Time Zone UTC + 7 hours
HHotel Time Zone UTC + 8 hours
IIndia Time Zone UTC + 9 hours
KKilo Time Zone UTC + 10 hours
LLima Time Zone UTC + 11 hours
MMike Time Zone UTC + 12 hours

Timezones by regions