E.U. Summer Time Start / End Dates
Year
Valid From 2002

European Union (E.U.) Summer Time Start/End Dates For 2017

Starting on the last Sunday in March and ending on the last Sunday in October

Summer Time Start Date

2017      March
SunMonTueWedThuFriSat
      1 2 3 4
5 6 7 8 9 10 11
12 13 14 15 16 17 18
19 20 21 22 23 24 25
26 27 28 29 30 31  

Summer Time End Date

2017      October
SunMonTueWedThuFriSat
1 2 3 4 5 6 7
8 9 10 11 12 13 14
15 16 17 18 19 20 21
22 23 24 25 26 27 28
29 30 31        

Duration = 217 days = 31 weeks
Since 2002 the European Union (E.U.) summer time rule has been standardized and implemented from the last Sunday in March to the last Sunday in October.  The duration of Summer Time varies between 210 days (30 weeks) in some years and 217 days (31 weeks) in others.  On transition either way, the clocks in all time zones change simultaneously at 01:00 UTC.


Ref:
Directive 2000/84/EC of the European Parliament and of the Council of 19 January 2001 on summer-time arrangements

 http://eur-lex.europa.eu/LexUriServ/LexUriServ.do?uri=CELEX:32000L0084:EN:HTML 


Jay Tanner - 2017 - v3.5