When creating a Blast or Calendar Invite, you may want to target sending or event details for a specific time.
This guide provides:
Time zones organized by region
UTC offsets (internet standard)
Common abbreviations
Major cities for reference
Because abbreviations may change throughout the year and are not unique, and because regions can contain multiple Time Zones, searching for the correct one can be challenging. For best results in Time Zone selection menus, type to search for the top common city referenced below.
North America
Region | Time Zone | UTC Offset | Abbreviation | Cities |
Eastern | Eastern Time | UTC−05:00 | EST / EDT | New York, Toronto, Atlanta |
Central | Central Time | UTC−06:00 | CST / CDT | Chicago, Dallas, Mexico City |
Mountain | Mountain Time | UTC−07:00 | MST / MDT | Denver, Phoenix, Calgary |
Pacific | Pacific Time | UTC−08:00 | PST / PDT | Los Angeles, Seattle, Vancouver |
Alaska | Alaska Time | UTC−09:00 | AKST / AKDT | Anchorage, Juneau |
Hawaii | Hawaii-Aleutian | UTC−10:00 | HST | Honolulu |
South America
Region | Time Zone | UTC Offset | Abbreviation | Cities |
Brazil (East) | Brasília Time | UTC−03:00 | BRT | Brasília, Buenos Aires, Rio de Janeiro, São Paulo |
Argentina | Argentina Time | UTC−03:00 | ART | Buenos Aires, Córdoba |
Chile | Chile Time | UTC−04:00 | CLT / CLST | Santiago |
Colombia / Peru | Peru Time | UTC−05:00 | PET | Bogotá, Lima |
Europe
Region | Time Zone | UTC Offset | Abbreviation | Cities |
Central Europe | Central European Time | UTC+01:00 | CET / CEST | Paris, Berlin, Rome |
Eastern Europe | Eastern European Time | UTC+02:00 | EET / EEST | Athens, Helsinki |
United Kingdom | Greenwich Mean Time | UTC+00:00 | GMT / BST | London, Manchester, Lisbon, Dublin |
Africa
Region | Time Zone | UTC Offset | Abbreviation | Cities |
West Africa | West Africa Time | UTC+01:00 | WAT | Lagos, Abuja |
Central Africa (incl. South) | Central Africa Time | UTC+02:00 | CAT | Harare, Lusaka, Johannesburg, Cape Town |
East Africa | East Africa Time | UTC+03:00 | EAT | Nairobi, Addis Ababa |
Middle East
Region | Time Zone | UTC Offset | Abbreviation | Cities |
United Arab Emirates | Gulf Standard Time | UTC+04:00 | GST | Dubai, Abu Dhabi |
Saudi Arabia | Arabia Standard Time | UTC+03:00 | AST | Riyadh, Jeddah |
Israel | Israel Standard Time | UTC+02:00 | IST | Jerusalem, Tel Aviv |
Asia
Region | Time Zone | UTC Offset | Abbreviation | Cities |
India | India Standard Time | UTC+05:30 | IST | Chennai, Mumbai, Delhi, Bangalore |
China | China Standard Time | UTC+08:00 | CST | Beijing, Shanghai |
Japan | Japan Standard Time | UTC+09:00 | JST | Tokyo, Osaka |
South Korea | Korea Standard Time | UTC+09:00 | KST | Seoul, Busan |
Thailand | Indochina Time | UTC+07:00 | ICT | Bangkok |
Indonesia (West) | Western Indonesia Time | UTC+07:00 | WIB | Jakarta |
Southeast Asia & Oceania
Region | Time Zone | UTC Offset | Abbreviation | Cities |
Singapore | Singapore Time | UTC+08:00 | SGT | Singapore |
Philippines | Philippine Time | UTC+08:00 | PHT | Manila |
Western Australia | Australian Western Standard Time | UTC+08:00 | AWST | Perth |
Central Australia | Australian Central Time | UTC+09:30 | ACST / ACDT | Adelaide, Darwin |
Eastern Australia | Australian Eastern Time | UTC+10:00 | AEST / AEDT | Sydney, Melbourne, Brisbane |
New Zealand | New Zealand Time | UTC+12:00 | NZST / NZDT | Auckland, Wellington |
Coordinated Universal Time (UTC)
Name | UTC Offset | Abbreviation | Cities |
Coordinated Universal Time | UTC±00:00 | UTC | Reykjavik, Accra |
📝 Important Notes
UTC is the global standard used for systems, APIs, and international coordination.
Many regions observe Daylight Saving Time (DST), which may shift the local time by +1 hour seasonally.
Some abbreviations are ambiguous (e.g., CST can mean Central Standard Time or China Standard Time). Always include the UTC offset or region when clarity is required.