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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—Stephen Hales (1677–1761)
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—Chinese proverb.
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