All Time Zones Around the World
Time zones help people, businesses, and travelers keep track of local time across different countries and cities. On this page, you can browse major time zones used around the world, including standard time zones, daylight saving time zones, and regional time systems.
Use this page to quickly find popular global time zones such as UTC, GMT, EST, PST, CST, MST, IST, BST, CET, and JST, and explore how they are used in different parts of the world.
Popular Time Zones
- UTC – Coordinated Universal Time
- GMT – Greenwich Mean Time
- EST – Eastern Standard Time
- PST – Pacific Standard Time
- CST – Central Standard Time
- MST – Mountain Standard Time
- IST – India Standard Time
- BST – British Summer Time
- CET – Central European Time
- JST – Japan Standard Time
North America Time Zones
- Eastern Standard Time (EST)
- Central Standard Time (CST)
- Mountain Standard Time (MST)
- Pacific Standard Time (PST)
- Alaska Standard Time (AKST)
- Hawaii-Aleutian Standard Time (HST)
- Atlantic Standard Time (AST)
- Newfoundland Standard Time (NST)
Europe Time Zones
- Greenwich Mean Time (GMT)
- British Summer Time (BST)
- Central European Time (CET)
- Central European Summer Time (CEST)Central European Summer Time (CEST)
- Eastern European Time (EET)
- Western European Time (WET)
Asia Time Zones
- India Standard Time (IST)
- Japan Standard Time (JST)
- China Standard Time (CST China)
- Korea Standard Time (KST)
- Gulf Standard Time (GST)
- Pakistan Standard Time (PKT)
- Bangladesh Standard Time (BST Bangladesh)
- Singapore Standard Time (SGT)
- Hong Kong Time (HKT)
- Philippine Time (PHT)
- Indochina Time (ICT)
- Nepal Time (NPT)
Australia and Oceania Time Zones
- Australian Eastern Standard Time (AEST)
- Australian Central Standard Time (ACST)
- Australian Western Standard Time (AWST)
- Australian Eastern Daylight Time (AEDT)
- Australian Central Daylight Time (ACDT)
- New Zealand Standard Time (NZST)
- New Zealand Daylight Time (NZDT)
Africa Time Zones
- West Africa Time (WAT)
- Central Africa Time (CAT)
- East Africa Time (EAT)
- South Africa Standard Time (SAST)
- Greenwich Mean Time (GMT)
South America Time Zones
- Argentina Time (ART)
- Brasilia Time (BRT)
- Chile Standard Time (CLT)
- Peru Time (PET)
- Colombia Time (COT)
- Bolivia Time (BOT)
- Venezuela Time (VET)
Frequently Asked Questions
What is a time zone?
A time zone is a region that uses the same standard time. Time zones are usually based on longitude and help organize time around the world.
What is the most commonly used global time zone?
UTC (Coordinated Universal Time) is the main global reference time zone used worldwide.
What is the difference between GMT and UTC?
GMT is based on mean solar time at Greenwich, while UTC is the modern international standard based on atomic time. For everyday use, they are often treated similarly.
Why do some countries have more than one time zone?
Large countries such as the United States, Canada, Russia, and Australia use multiple time zones because they cover a wide geographic area.
Do all time zones use whole hours?
No. Some time zones use half-hour or 45-minute offsets, such as IST (UTC+5:30) and NPT (UTC+5:45).
