2025年3月30日 (日), 1時00分
3月1日 (金)
Forward 1 hour
1918年3月1日 (金) - Daylight Saving Time Started
When local standard time was about to reach
1918年3月1日金曜日, 23時00分00秒 clocks were turned forward 1 hour to
1918年3月2日土曜日, 0時00分00秒 local daylight time instead.
Sunrise and sunset were about 1 hour later on 1918年3月2日 (土) than the day before. There was more light in the evening and less light in the morning.
Also called Spring Forward, Summer Time, and Daylight Savings Time.
10月15日 (火)
Back 1 hour
1918年10月15日 (火) - Daylight Saving Time Ended
When local daylight time was about to reach
1918年10月15日火曜日, 0時00分00秒 clocks were turned backward 1 hour to
1918年10月14日月曜日, 23時00分00秒 local standard time instead.
Sunrise and sunset were about 1 hour earlier on 1918年10月15日 (火) than the day before. There was more light in the morning and less light in the evening.
Also called Fall Back and Winter Time.
Daylight Saving Time History in Portugal
- Portugal first observed Daylight Saving Time in 1916.
- Portugal has observed DST for 94 years between 1916 and 2025.
- Previous time with no Daylight Saving Time was 1976.
- See Worldwide DST Statistics