European Summer Time - Exact Timing For The Next Several Years

Exact Timing For The Next Several Years

European Summer Time begins (clocks go forward) at 01:00 UTC on

  • 25 March 2012
  • 31 March 2013
  • 30 March 2014
  • 29 March 2015
  • 27 March 2016

Formula used to calculate the beginning of European Summer Time:

Sunday (31 − ((((5 × y) ÷ 4) + 4) mod 7)) March at 01:00 GMT

(valid until 2099), where y is the year, and for the nonnegative a, a mod b is the remainder of division after truncating both operands to an integer.

European Summer Time ends (clocks go backward) at 01:00 GMT on

  • 28 October 2012
  • 27 October 2013
  • 26 October 2014
  • 25 October 2015
  • 30 October 2016

Formula used to calculate the end of European Summer Time:

Sunday (31 − ((((5 × y) ÷ 4) + 1) mod 7)) October at 01:00 GMT

(validity as above).

Read more about this topic:  European Summer Time

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