World Time Zones
Definition of time zones
A time zone item specifies an international time zone, indicated by
a small set of letters.
Military time zone designations use a single letter (except j). Zulu
Time (z) is Greenwich Mean Time (GMT).
Here are the most common standard-time time zones, indexed by the zone hour
value.
GMT
offset |
Time Zone Abbreviations |
Military
Time
Zone |
| -0:00 |
GMT =
Greenwich Mean Time
UT or UTC for Universal (Coordinated) Time
WET for Western European Time |
z |
Time Zones East of Greenwich
GMT
offset |
Time Zone Abbreviations |
Military
Time
Zone |
| GMT+1 |
CET =
Central European Time
FWT = French Winter Time (France)
MET = Middle European Time
MEWT = Middle European Winter Time
SWT = Swedish Winter Time (Sweden) |
A |
| GMT+2 |
EET = Eastern European Time, USSR Zone 1 |
B |
| GMT+3 |
BT = Baghdad Time, USSR Zone 2 |
C |
| GMT+4 |
ZP4 = USSR Zone 3 |
D |
| GMT+5 |
ZP5 = USSR Zone 4. |
E |
| GMT+6 |
ZP6 = USSR Zone 5. |
F |
| GMT+7 |
CXT = Christmas Island Time (Australia) |
G |
| GMT+8 |
CCT = China Coast Time, USSR Zone 7
AWST = Australian Western Standard Time
WST = Western Standard Time (Australia) |
H |
| GMT+9 |
JST = Japan
Standard Time, USSR Zone 8 |
I |
| GMT+10 |
EAST = East Australian Standard Time
EST = Eastern Standard Time (Australia)
GST = Guam Standard Time, USSR Zone 9 |
K |
| GMT+11 |
|
L |
| GMT+12 |
IDLE = International Date Line East
NZST = New Zealand Standard Time
NZT = New Zealand Time |
M |
Time Zones West of Greenwich
Here are many Daylight Saving Time (DST) time zones, indexed by the zone hour
value.
GMT
offset |
Time Zone Abbreviations |
Military
Time
Zone |
| GMT+1 |
BST =
British Summer Time (UK)
IST = Irish Summer Time (Ireland)
WEDT = Western European Daylight Time
WEST Western European Summer Time |
A |
| GMT+2 |
CEDT = Central European Daylight Time
CEST = Central European Summer Time
MEST = Middle European Summer Time
MESZ = Middle European Summer Time
SST = Swedish Summer Time (Sweden)
FST = French Summer Time (France) |
B |
| GMT+3 |
EEDT = Eastern European Daylight Time
EEST Eastern European Summer Time |
C |
| GMT+8 |
WADT = West Australian Daylight Time |
H |
| GMT+11 |
EADT = Eastern Australian Daylight Time
EST = Eastern Summer (Daylight) Time (Australia) |
L |
| GMT+13 |
NZDT = New Zealand Daylight Time |
M* |
French Time Zone Abbreviations
HAA = Heure Avancée de l'Atlantique GMT-3
HAC = Heure Avancée du Centre GMT-5
HAE = Heure Avancée de l'Est GMT-4
HAP = Heure Avancée du Pacifique GMT-7
HAR = Heure Avancée des Rocheuses GMT-6
HAT = Heure Avancée de Terre-Neuve GMT-2:30
HAY = Heure Avancée du Yukon GMT-8
HNA = Heure Normale de l'Atlantique GMT-4
HNC = Heure Normale du Centre GMT-6
HNE = Heure Normale de l'Est GMT-5
HNP = Heure Normale du Pacifique GMT-8
HNR = Heure Normale des Rocheuses GMT-7
HNT = Heure Normale de Terre-Neuve GMT-3:30
HNY = Heure Normale du Yukon GMT-9
German Time Zone Abbreviations
MESZ = Mitteleuropäische Sommerzeit GMT+2
MEZ = Mitteleuropäische Zeit GMT+1
Non-standard Time Zones
ACDT Australian Central Daylight Time Australia GMT+10:30
ACST Australian Central Standard Time Australia GMT+9:30
CST Central Summer (Daylight) Time Australia GMT+10:30
CST Central Standard Time Australia GMT+9:30
IST =
India Standard Time
GMT+5:30
NDT Newfoundland Daylight Time (Canada) GMT-2:30
NFT Norfolk (Island) Time (Australia) GMT+11:30
NST Newfoundland Standard Time (Canada) GMT-3:30
Military Time Zones
The hourly zones are used by the military are referred to by a letter of the
alphabet (or their phonetic equivalent).
The letter J is not used.
The other 25 letters cover the 12 time zones to the east of Greenwich and the 12
time zones to the west of Greenwich. The 25th zone is Z (Zulu) for GMT / UTC.
A - M are for time zones to the East of Greenwich
N - Y are for time zones to the West of Greenwich.
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