Articles about Time Zone

UTC – Coordinated Universal Time

Coordinated Universal Time (UTC) is the basis for civil time today. This 24-hour time standard is kept using highly precise atomic clocks combined with the Earth's rotation. more

What is a Time Zone?

A 'Time Zone' refers to any region where the same standard time is kept. Interactive Time Zone Map for current Time Zones worldwide. more

International Date Line (IDL)

The International Date Line (IDL) is an imaginary line of longitude on the Earth’s surface located at about 180 degrees east (or west) of the Greenwich Meridian. more

GMT or BST in the UK?

The UK is not on Greenwich Mean Time (GMT) all year. During Daylight Saving Time the correct time zone is British Summer Time (BST). more

UTC & GMT – Same Difference?

Greenwich Mean Time (GMT) is often interchanged or confused with Coordinated Universal Time (UTC). But GMT is a time zone and UTC is a time standard. more

Why Do We Have Time Zones?

Which country first adopted time zones? Where and why were standard time zones first adopted and why were time zones created? more

Canada’s Time Zones

timeanddate.com provides information on Canada’s time zones. more

Half Hour and 45-Minute Time Zones

While most time zones differ from Coordinated Universal Time (UTC) by a number of full hours, some time zones have 30-minute or 45-minute offsets. more

The United States' Time Zones

Background and brief history of the United States’ 9 time zones. more

Why UTC – not CUT?

The abbreviation for Coordinated Universal Time is UTC. Why is it not abbreviated as “CUT” or “TUC”? more

Time Zones in Antarctica

Technically, both the South Pole and the North Pole are in all time zones at the same time. more

The UK's Time Zone

Timeanddate.com gives a brief overview of the United Kingdom’s time zone and daylight saving time. more

Time Zones and DST in Europe

Europe is divided into 4 main time zones that span from UTC +0 hours in western European countries to UTC +3 hours in Belarus and parts of Russia. more

Australia’s Time Zones

Australia has multiple time zones. Some of them are half-hour and quarter-hour time zones. Not all states and territories use Daylight Saving Time (DST). more