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Daylight Saving Time

Daylight saving time was implemented in Germany and Austria in 1916 to save oil by getting the most of out the daylight during the summer. Due to Worldwar 1. there was an oil shortage in these countries.

Since then the concept has spread to large parts of the world. Today daylight saving time is in use to save electricty for lighting.

The concept of summer time is to advance the clocks one hour so it stays light longer in the evening.

In Europe the the change to daylight saving time happens the last sunday in March. The return to normal time is carried out the last sunday in October.
Change to Daylight saving time 2017 in Europe
The clocks are advanced one hour at 2 o'clock in the night between March 26th and 27th.

Return to normal time 2017 in Europe
At 3 o'clock in the night between October 29th and 30th the clocks are retreated one hour.

Which contries uses Daylight saving time?
Most of Europe, North America as well as some countries in The Middle East, South America and parts of Australia uses Daylight saving time. Most of Asia and Africa only uses normal time. The areas marked with blue on the map below uses Daylight saving time:

Daylight Saving Time