TIME ZONES
IT IS A GOOD PRACTICE TO STATE THE TIME OF THE CALL / MEETING USING GMT (GREENWICH MERIDIAN TIME) OR UTC (UNIVERSAL TIME COORDINATES).
Abbreviation Time zone name Location Offset
A Alpha Time Zone Military UTC +1
Z Zulu Time Zone Military UTC +0
ACDT Australian Central Daylight Time Australia UTC +10:30
CDT – Central Daylight Time
CDST – Central Daylight Savings Time
ACST Australian Central Standard Time Australia UTC +9:30
CST – Central Standard Time
ACT Australian Central Time Australia UTC +9:30 / +10:30
ACWST Australian Central Western Standard Time Australia UTC +8:45
ADT Atlantic Daylight Time North America UTC -3
ADST – Atlantic Daylight Saving Time Atlantic
AST – Atlantic Summer Time
AEDT Australian Eastern Daylight Time Australia UTC +11
EDT – Eastern Daylight Time
EDST – Eastern Daylight Saving Time
AEST Australian Eastern Standard Time Australia UTC +10
EST – Eastern Standard Time
AET – Australian Eastern Time
AET Australian Eastern Time Australia UTC +10:00 / +11:00
AKDT Alaska Daylight Time North America UTC -8
ADST – Alaska Daylight Saving Time
AKST Alaska Standard Time North America UTC -9
AT – Alaska Time
AMST Amazon Summer Time South America UTC -3
AMT Amazon Time South America UTC -4
South America
AST Atlantic Standard Time North America UTC -4
AT – Atlantic Time Atlantic
AT Atlantic Time North America UTC -4:00 / -3:00
Atlantic
AWDT Australian Western Daylight Time Australia UTC +9
WDT – Western Daylight Time
WST – Western Summer Time
AWST Australian Western Standard Time Australia UTC +8
WST – Western Standard Time
WAT – Western Australia Time
AoE Anywhere on Earth Pacific UTC -12
B Bravo Time Zone Military UTC +2
BST – Brazil Summer Time
BST – Brazilian Summer Time
BT – Brazil Time
BT – Brazilian Time
BST British Summer Time Europe UTC +1
BDT – British Daylight Time
BDST – British Daylight Saving Time
C Charlie Time Zone Military UTC +3
CDT Central Daylight Time North America UTC -5
CDST – Central Daylight Saving Time
NACDT – North American Central Daylight Time
CEST Central European Summer Time Europe UTC +2
CEDT – Central European Daylight Time Antarctica
ECST – European Central Summer Time
MESZ – Mitteleuropäische Sommerzeit (German)
CET Central European Time Europe UTC +1
ECT – European Central Time Africa
CET – Central Europe Time
MEZ – Mitteleuropäische Zeit (German)
CST Central Standard Time North America UTC -6
CT – Central Time Central America
NACST – North American Central Standard Time
CST China Standard Time Asia UTC +8
CT Central Time North America UTC -6:00 / -5:00
D Delta Time Zone Military UTC +4
E Echo Time Zone Military UTC +5
EADT – Easter Island Daylight Time
EDT Eastern Daylight Time North America UTC -4
EDST – Eastern Daylight Savings Time Caribbean
NAEDT – North American Eastern Daylight Time
EEST Eastern European Summer Time Europe UTC +3
EEDT – Eastern European Daylight Time Asia
OESZ – Osteuropäische Sommerzeit (German)
EET Eastern European Time Europe UTC +2
OEZ – Osteuropäische Zeit (German) Asia
Africa
EGT – Eastern Greenland Time
EST Eastern Standard Time North America UTC -5
ET – Eastern Time Caribbean
NAEST – North American Eastern Standard Time Central America
ET – Tiempo del Este (Spanish)
ET Eastern Time North America UTC -5:00 / -4:00
Caribbean
F Foxtrot Time Zone Military UTC +6
FET Further-Eastern European Time Europe UTC +3
FJST Fiji Summer Time Pacific UTC +13
FJDT – Fiji Daylight Time
FJT Fiji Time Pacific UTC +12
G Golf Time Zone Military UTC +7
Europe
GMT Greenwich Mean Time Europe UTC +0
UTC – Coordinated Universal Time Africa
GT – Greenwich Time North America
Antarctica
GST Gulf Standard Time Asia UTC +4
H Hotel Time Zone Military UTC +8
HADT – Hawaii Daylight Time
HKT Hong Kong Time Asia UTC +8
HST Hawaii Standard Time North America UTC -10
ICT Indochina Time Asia UTC +7
IRKST Irkutsk Summer Time Asia UTC +9
IRKT Irkutsk Time Asia UTC +8
IST Irish Standard Time Europe UTC +1
IST – Irish Summer Time
JST Japan Standard Time Asia UTC +9
K Kilo Time Zone Military UTC +10
KRAST Krasnoyarsk Summer Time Asia UTC +8
KRAT Krasnoyarsk Time Asia UTC +7
KST Korea Standard Time Asia UTC +9
KST – Korean Standard Time
KT – Korea Time
L Lima Time Zone Military UTC +11
M Mike Time Zone Military UTC +12
MDT Mountain Daylight Time North America UTC -6
MDST – Mountain Daylight Saving Time
NAMDT – North American Mountain Daylight Time
MSD Moscow Daylight Time Europe UTC +4
Moscow Summer Time
MSK Moscow Standard Time Europe UTC +3
MCK – Moscow Time Asia
MST Mountain Standard Time North America UTC -7
MT – Mountain Time
NAMST – North American Mountain Standard Time
MT Mountain Time North America UTC -7:00 / -6:00
MVT Maldives Time Asia UTC +5
MYT Malaysia Time Asia UTC +8
MST – Malaysian Standard Time
N November Time Zone Military UTC -1
NOVST Novosibirsk Summer Time Asia UTC +7
OMSST – Omsk Summer Time
NOVT Novosibirsk Time Asia UTC +7
OMST – Omsk Standard Time
NZDT New Zealand Daylight Time Pacific UTC +13
Antarctica
NZST New Zealand Standard Time Pacific UTC +12
Antarctica
O Oscar Time Zone Military UTC -2
OMSST Omsk Summer Time Asia UTC +7
NOVST – Novosibirsk Summer Time
OMST Omsk Standard Time Asia UTC +6
OMST – Omsk Time
NOVT – Novosibirsk Time
P Papa Time Zone Military UTC -3
PDT Pacific Daylight Time North America UTC -7
PDST – Pacific Daylight Saving Time
NAPDT – North American Pacific Daylight Time
PGT Papua New Guinea Time Pacific UTC +10
PHOT Phoenix Island Time Pacific UTC +13
PHT Philippine Time Asia UTC +8
PST – Philippine Standard Time
PST Pacific Standard Time North America UTC -8
PT – Pacific Time
NAPST – North American Pacific Standard Time
PT – Tiempo del Pacífico (Spanish)
PST Pitcairn Standard Time Pacific UTC -8
PT Pacific Time North America UTC -8:00 / -7:00
Q Quebec Time Zone Military UTC -4
R Romeo Time Zone Military UTC -5
S Sierra Time Zone Military UTC -6
SAST – South African Standard Time
SGT Singapore Time Asia UTC +8
SST – Singapore Standard Time
TRT Turkey Time Asia UTC +3
Europe
U Uniform Time Zone Military UTC -8
UTC Coordinated Universal Time Worldwide UTC
V Victor Time Zone Military UTC -9
VLAST Vladivostok Summer Time Asia UTC +11
VLAT Vladivostok Time Asia UTC +10
W Whiskey Time Zone Military UTC -10
WEST Western European Summer Time Europe UTC +1
WEDT – Western European Daylight Time Africa
WESZ – Westeuropäische Sommerzeit (German)
WET Western European Time Europe UTC +0
GMT – Greenwich Mean Time Africa
WEZ – Westeuropäische Zeit (German)
WGST – West Greenland Summer Time
WGT – Western Greenland Time
WIB Western Indonesian Time Asia UTC +7
WIB – Waktu Indonesia Barat
WIT Eastern Indonesian Time Asia UTC +9
WIT – Waktu Indonesia Timur
WITA Central Indonesian Time Asia UTC +8
WITA – Waktu Indonesia Tengah
WT – Western Sahara Time
X X-ray Time Zone Military UTC -11
Y Yankee Time Zone Military UTC -12
YAKST Yakutsk Summer Time Asia UTC +10
YAKT Yakutsk Time Asia UTC +9
YEKST Yekaterinburg Summer Time Asia UTC +6
YEKT Yekaterinburg Time Asia UTC +5
Which one is it easier for you to understand?
Let's have a call at 15:30 ICT
Let's have a call at 03:30pm Bangkok Time
Let's have a call at 08:30 GMT/UTC
Whoever took a plane once in life, is aware that ETD (Estimated Time of Departure) and ETA (Estimated Time of Arrival) are always show in local Departure / Arrival time.
The world is divided in time zones (TZ), and not every one is familiar with the name of your own TZ.
I am quite sure that you don't have a clue about what is ICT (Indo China Time), in which countries is used (Thailand, Vietnam, Laos, Cambodia) and what is the offset to UTC (+7.00) or if we have or not the DST (Daylight Saving Time).
