European clocks on Summer / Daylight Saving Time
until: Sunday 28 October 2012 01:00 GMT
Portugal (Mainland and Madeira) is in the Western European Time Zone. Western European Standard Time (WET) is Greenwich Mean Time (GMT).
Like most states in Europe, Summer (Daylight-Saving) Time is observed in
Portugal, where the time is shifted forward by 1 hour; 1 hours ahead of Greenwich Mean Time (GMT+1).
After the Summer months the time is shifted back by 1 hour to Western European Time (WET) or (GMT).