Articles About Daylight Saving Time (21)

Commuters and tourists in Canary Wharf, London, United Kingdom.

Daylight Saving Time (DST)

Why do many countries set the clocks back and forth an hour twice a year?

Parents playing with their young daughter in the evening sun

History of DST

History of Daylight Saving Time (DST). Why was Daylight Saving Time created, who invented it, and what is the point of having a time change every year?

Illustration of a hand changing time on a watch

Upcoming Daylight Saving Time Clock Changes

Overview over countries that will change their clocks to or from Daylight Saving Time (also referred to as Daylight Savings Time) during the coming 4 weeks or that have recently changed.

Illustration of fingers changing the time on a wristwatch.

1 Hour Ahead or Back?

Which way do the clocks go? "Spring forward or fall back" is just one way to remember which way set the clocks for Daylight Saving Time (DST).

Highway with car lights leading to Atlanta at twilight.

The Never-Ending DST Debate

Daylight Saving Time (DST) has been used for more than But do its pros really outweigh its cons?

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).

Skyline of downtown Indianapolis, Indiana, USA.

Time Zones in Indiana

In Indiana, USA, there are are two time zones: Central Time and Eastern Time. All counties set their clocks one hour to and from Daylight Saving Time (DST) twice a year. Indiana time zone map with local time in each county.

Fifth Avenue Clock with the Flatiron Building at the background in New York City.

What Is Standard Time?

Standard time is also known as winter time or normal time in some countries.

A child in a red jumper leaning their head in their hand and trying to eat a bowl of cereal.

Transition to DST

When Daylight Saving Time (DST) starts, clocks go forward; when it ends, clocks go back. So what is Daylight Saving? Do we gain an hour or lose an hour?

Map showing DST areas for Navajo in Arizona.

No DST in Most of Arizona

Most of the US state of Arizona does not use Daylight Saving Time (DST). The exception is the Navajo Nation.

Storm rising over United States Capitol Building, Washington DC

DST in the United States

When did Daylight Saving Time start in the US? Which states use it, and why?

Daylight Savings or Saving?

“Daylight Saving Time” is the correct term, but “Daylight Savings Time” with an “s” is at least as commonly used.

Astronomical clock in Prague, the Czech Republic.

When Did DST Start in Europe?

Daylight Saving Time (DST) was first adopted in Europe by Germany in 1916.

Tired man in a car, yawning and drinking take away coffee.

Can DST Kill Me?

Daylight Saving Time (DST) can mess with our body clock and can trigger underlying health issues.

Closeup shot of the Elizabeth tower housing the Big Ben bell in London

Summer Time or DST?

Summer time is often used to describe Daylight Saving Time (DST), especially the United Kingdom. Winter time instead of standard time is also a common variation.

Illustration of clock with arrow moving forward 1 hour.

Preliminary Dates for DST Switches

Daylight Savings Time (DST) dates may be altered on short notice in some countries.

An old clock on top of a calendar of March.

Energy Policy Act of 2005

The Energy Policy Act of 2005 was signed into law on August 8, 2005, and changed DST in the US.

A young couple relaxing in an airport lounge.

Jet Lag Tips

What is jet lag, what are the symptoms, and which remedies are recommended?

Close up of dark-haired child laying in bed looking up.

Can DST affect our sleep?

Daylight Saving Time and changing clocks can affect your kid's and baby’s sleep. Here’s how you deal with “Spring Forward - Fall Back”.

Clock with snow on it during the winter time.

Winter Time Is the Same as Standard Time

Winter time is often used to describe the time of year when a country is not on Daylight Saving Time (DST). It is officially known as standard time.

European Parliament building at sunset. Brussels, Belgium.

Is the Sun Setting on DST in the EU?

The European Parliament wants to remove Daylight Saving Time (DST) in the European Union. What does that mean for the countries in Europe? And what about Brexit?