World Timezone Abbreviations
All 36 major timezone abbreviations — live clocks, UTC offsets, DST status, and major cities for every zone. From UTC−10 (Hawaii) to UTC+12 (New Zealand).
Global
2 zonesUniversal time standard used as the basis for civil time worldwide.
Mean solar time at the Royal Observatory in Greenwich, London.
Americas
11 zonesUsed in the eastern United States and Canada during standard time (winter).
Daylight saving time in the eastern United States and Canada (summer).
Used in the central United States and Canada during standard time.
Daylight saving time in the central United States and Canada.
Used in the mountain states of the United States and Canada.
Daylight saving time in the mountain United States and Canada.
Used along the Pacific coast of North America during standard time.
Daylight saving time along the Pacific coast of North America.
Used in Alaska during standard time.
Official time zone of Brasília and most of Brazil.
Standard time in Argentina; does not observe DST.
Europe
6 zonesUsed in most of continental Europe during standard time.
Daylight saving time in Central Europe (UTC+2).
Used in Eastern Europe during standard time.
Used in Western Russia; does not observe DST.
Official time zone of Turkey (UTC+3).
Used in Portugal, Iceland, and Morocco during standard time (UTC+0).
Middle East & South Asia
4 zonesUsed in the UAE, Oman, and surrounding Gulf countries.
Official time zone of Pakistan (UTC+5).
Used throughout India; offset of UTC+5:30, does not observe DST.
Official time zone of Bangladesh (UTC+6).
Southeast & East Asia
6 zonesUsed in Thailand, Vietnam, Laos, and Cambodia.
Official time zone of China, covering the entire country.
Official time zone of Hong Kong (UTC+8).
Official time zone of Singapore (UTC+8).
Official time zone of Japan; does not observe DST.
Official time zone of South Korea (UTC+9).
Africa
3 zonesUsed in East African countries including Kenya, Tanzania, Ethiopia.
Used in West and Central African countries including Nigeria.
Official time zone of South Africa (UTC+2); does not observe DST.
Pacific & Oceania
4 zonesUsed in Hawaii; does not observe daylight saving time.
Used in eastern Australia (NSW, Victoria, Queensland) during standard time.
Official time zone of New Zealand (UTC+12).
Used in South Australia and Northern Territory (UTC+9:30); no DST in NT.
Quick Reference — All Timezone Abbreviations
| Abbreviation | Full Name | UTC Offset | DST | Region | |
|---|---|---|---|---|---|
| HST | Hawaii Standard Time | UTC−10 | — | Pacific | View |
| AKST | Alaska Standard Time | UTC−9 | +1h DST | North America | View |
| PST | Pacific Standard Time | UTC−8 | +1h DST | North America | View |
| MST | Mountain Standard Time | UTC−7 | +1h DST | North America | View |
| PDT | Pacific Daylight Time | UTC−7 | — | North America | View |
| CST | Central Standard Time | UTC−6 | +1h DST | North America | View |
| MDT | Mountain Daylight Time | UTC−6 | — | North America | View |
| EST | Eastern Standard Time | UTC−5 | +1h DST | North America | View |
| CDT | Central Daylight Time | UTC−5 | — | North America | View |
| EDT | Eastern Daylight Time | UTC−4 | — | North America | View |
| BRT | Brasília Time | UTC−3 | — | South America | View |
| ART | Argentina Time | UTC−3 | — | South America | View |
| UTC | Coordinated Universal Time | UTC±0 | — | Global | View |
| GMT | Greenwich Mean Time | UTC±0 | +1h DST | Europe/Africa | View |
| WET | Western European Time | UTC±0 | +1h DST | Europe | View |
| CET | Central European Time | UTC+1 | +1h DST | Europe | View |
| WAT | West Africa Time | UTC+1 | — | Africa | View |
| CEST | Central European Summer Time | UTC+2 | — | Europe | View |
| EET | Eastern European Time | UTC+2 | +1h DST | Europe | View |
| SAST | South Africa Standard Time | UTC+2 | — | Africa | View |
| MSK | Moscow Standard Time | UTC+3 | — | Europe/Asia | View |
| TRT | Turkey Time | UTC+3 | — | Europe/Asia | View |
| EAT | East Africa Time | UTC+3 | — | Africa | View |
| GST | Gulf Standard Time | UTC+4 | — | Middle East | View |
| PKT | Pakistan Standard Time | UTC+5 | — | South Asia | View |
| IST | India Standard Time | UTC+5:30 | — | South Asia | View |
| BST | Bangladesh Standard Time | UTC+6 | — | South Asia | View |
| ICT | Indochina Time | UTC+7 | — | Southeast Asia | View |
| CST8 | China Standard Time | UTC+8 | — | East Asia | View |
| HKT | Hong Kong Time | UTC+8 | — | East Asia | View |
| SGT | Singapore Standard Time | UTC+8 | — | Southeast Asia | View |
| JST | Japan Standard Time | UTC+9 | — | East Asia | View |
| KST | Korea Standard Time | UTC+9 | — | East Asia | View |
| ACST | Australian Central Standard Time | UTC+9:30 | — | Oceania | View |
| AEST | Australian Eastern Standard Time | UTC+10 | +1h DST | Oceania | View |
| NZST | New Zealand Standard Time | UTC+12 | +1h DST | Oceania | View |