Mainland Portugal and the autonomous regions of Madeira and the Azores will advance their clocks by one hour in the early hours of Sunday, starting summer time.
In mainland Portugal and the Autonomous Region of Madeira, the clocks will advance one hour when it is 01:00 on Sunday, becoming 02:00.
In the Autonomous Region of the Azores, the change will be made at 00:00, changing to 01:00.
The legal time will change again on October 25th, to the winter regime.
The current time change regime is regulated by a directive (community law) from 2000, which provides that every year clocks are, respectively, moved forward and backward one hour on the last Sunday in March and the last Sunday in October, marking the beginning and end of summer time.

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