What is meant by day length?

Daytime starts at sunrise and ends at sunset.

Day length (length of the day) is the time from sunrise to sunset when it is light.

Did you know?

Daylight hours are exactly opposite for the Southern and Northern Hemispheres.

Day Length in the UK

As the UK is a relatively small country the day length does not differ much from place to place.

Click here to investigate sunrise and sun set in the Uk

Example: 3 October 2007

Times of sunrise and sunset in the UK in 2009

January 2009 | February 2009 | March 2009 | April 2009

May 2009 | June 2009 | July 2009 | August 2009

September 2009 | October 2009 | November 2009 | December 2009

Animation

Click here to go to an interactive activity to see the length of the day and night, as well as sunrise and sunset times for a chosen date.

Day Length around the World

To spot patterns in the differences and similarities between day lengths in different places it is necessary to use a larger area of the globe. Visit the next page to read more

Day and Night Equator