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Clock Changes in Lisbon, Portugal (Lisboa) 1943

Next change:
Mar
29
1 hour Forward

Mar 29, 2026, 1:00 am

Start DST: Sunday, March 14, 1943 — 1 hour forward
Increase DST: Sunday, April 18, 1943 — 1 hour forward
Location of LisbonLocation

Mar 13

Forward 1 hour

Mar 13, 1943 - Daylight Saving Time Started

When local standard time was about to reach
Saturday, March 13, 1943, 11:00:00 pm clocks were turned forward 1 hour to
Sunday, March 14, 1943, 12:00:00 midnight local daylight time instead.

Sunrise and sunset were about 1 hour later on Mar 14, 1943 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.

Apr 17

Forward 1 hour

Apr 17, 1943 - Daylight Saving Time Increased

Double DST – Clocks were turned ahead another hour when DST was already in force (2 hours ahead of standard time).
When local daylight time was about to reach
Saturday, April 17, 1943, 11:00:00 pm clocks were turned forward 1 hour to
Sunday, April 18, 1943, 12:00:00 midnight local daylight time instead.

Sunrise and sunset were about 1 hour later on Apr 18, 1943 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.

Aug 29

Back 1 hour

Aug 29, 1943 - Daylight Saving Time Decreased

Double DST ended – Clocks were turned back from double DST (2 hours ahead of standard time) to DST (1 hour ahead of standard time).
When local daylight time was about to reach
Sunday, August 29, 1943, 12:00:00 midnight clocks were turned backward 1 hour to
Saturday, August 28, 1943, 11:00:00 pm local daylight time instead.

Sunrise and sunset were about 1 hour earlier on Aug 29, 1943 than the day before. There was more light in the morning and less light in the evening.

Also called Spring Forward, Summer Time, and Daylight Savings Time.

Oct 31

Back 1 hour

Oct 31, 1943 - Daylight Saving Time Ended

When local daylight time was about to reach
Sunday, October 31, 1943, 12:00:00 midnight clocks were turned backward 1 hour to
Saturday, October 30, 1943, 11:00:00 pm local standard time instead.

Sunrise and sunset were about 1 hour earlier on Oct 31, 1943 than the day before. There was more light in the morning and less light in the evening.

Also called Fall Back and Winter Time.

Other years: 1940 | 1941 | 1942 | 1943 | 1944 | 1945 | 1946

Daylight Saving Time in Other Years

DST changes do not necessarily occur on the same date every year.

YearDST Start (Clock Forward)DST End (Clock Backward)
1925DST not observed
1926Saturday, April 17, 11:00 pmSunday, October 3, 12:00 midnight
1927Saturday, April 9, 11:00 pmSunday, October 2, 12:00 midnight
1928Saturday, April 14, 11:00 pmSunday, October 7, 12:00 midnight
1929Saturday, April 20, 11:00 pmSunday, October 6, 12:00 midnight
1930DST not observed
1931Saturday, April 18, 11:00 pmSunday, October 4, 12:00 midnight
1932Saturday, April 2, 11:00 pmSunday, October 2, 12:00 midnight
1933DST not observed
1934Saturday, April 7, 11:00 pmSunday, October 7, 12:00 midnight
1935Saturday, March 30, 11:00 pmSunday, October 6, 12:00 midnight
1936Saturday, April 18, 11:00 pmSunday, October 4, 12:00 midnight
1937Saturday, April 3, 11:00 pmSunday, October 3, 12:00 midnight
1938Saturday, March 26, 11:00 pmSunday, October 2, 12:00 midnight
1939Saturday, April 15, 11:00 pmSunday, November 19, 12:00 midnight
1940Saturday, February 24, 11:00 pmSunday, October 6, 12:00 midnight
1941Saturday, April 5, 11:00 pmMonday, October 6, 12:00 midnight
* 1942Saturday, March 14, 11:00 pmSunday, October 25, 12:00 midnight
* 1943Saturday, March 13, 11:00 pmSunday, October 31, 12:00 midnight
* 1944Saturday, March 11, 11:00 pmSunday, October 29, 12:00 midnight
* 1945Saturday, March 10, 11:00 pmSunday, October 28, 12:00 midnight
1946Saturday, April 6, 11:00 pmSunday, October 6, 12:00 midnight
1947Sunday, April 6, 2:00 amSunday, October 5, 3:00 am
1948Sunday, April 4, 2:00 amSunday, October 3, 3:00 am
1949Sunday, April 3, 2:00 amSunday, October 2, 3:00 am
All times are local for Lisbon.
* All or part of this period was on double DST.

Detailed time zone and clock changes in Lisbon

Daylight Saving Time Info

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