Mar 29, 2026, 1:00 am
| Start DST: | Sunday, March 31, 1935 — 1 hour forward |
|---|---|
| End DST: | Saturday, October 5, 1935 — 1 hour backward |
Mar 30
Forward 1 hour
Mar 30, 1935 - Daylight Saving Time Started
When local standard time was about to reach
Saturday, March 30, 1935, 11:00:00 pm clocks were turned forward 1 hour to
Sunday, March 31, 1935, 12:00:00 midnight local daylight time instead.
Sunrise and sunset were about 1 hour later on Mar 31, 1935 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.
Oct 6
Back 1 hour
Oct 6, 1935 - Daylight Saving Time Ended
When local daylight time was about to reach
Sunday, October 6, 1935, 12:00:00 midnight clocks were turned backward 1 hour to
Saturday, October 5, 1935, 11:00:00 pm local standard time instead.
Sunrise and sunset were about 1 hour earlier on Oct 6, 1935 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 in Other Years
DST changes do not necessarily occur on the same date every year.
| Year | DST Start (Clock Forward) | DST End (Clock Backward) |
|---|---|---|
| 1925 | DST not observed | |
| 1926 | Saturday, April 17, 11:00 pm | Sunday, October 3, 12:00 midnight |
| 1927 | Saturday, April 9, 11:00 pm | Sunday, October 2, 12:00 midnight |
| 1928 | Saturday, April 14, 11:00 pm | Sunday, October 7, 12:00 midnight |
| 1929 | Saturday, April 20, 11:00 pm | Sunday, October 6, 12:00 midnight |
| 1930 | DST not observed | |
| 1931 | Saturday, April 18, 11:00 pm | Sunday, October 4, 12:00 midnight |
| 1932 | Saturday, April 2, 11:00 pm | Sunday, October 2, 12:00 midnight |
| 1933 | DST not observed | |
| 1934 | Saturday, April 7, 11:00 pm | Sunday, October 7, 12:00 midnight |
| 1935 | Saturday, March 30, 11:00 pm | Sunday, October 6, 12:00 midnight |
| 1936 | Saturday, April 18, 11:00 pm | Sunday, October 4, 12:00 midnight |
| 1937 | Saturday, April 3, 11:00 pm | Sunday, October 3, 12:00 midnight |
| 1938 | Saturday, March 26, 11:00 pm | Sunday, October 2, 12:00 midnight |
| 1939 | Saturday, April 15, 11:00 pm | Sunday, November 19, 12:00 midnight |
| 1940 | Saturday, February 24, 11:00 pm | Sunday, October 6, 12:00 midnight |
| 1941 | Saturday, April 5, 11:00 pm | Monday, October 6, 12:00 midnight |
| * 1942 | Saturday, March 14, 11:00 pm | Sunday, October 25, 12:00 midnight |
| * 1943 | Saturday, March 13, 11:00 pm | Sunday, October 31, 12:00 midnight |
| * 1944 | Saturday, March 11, 11:00 pm | Sunday, October 29, 12:00 midnight |
| * 1945 | Saturday, March 10, 11:00 pm | Sunday, October 28, 12:00 midnight |
| 1946 | Saturday, April 6, 11:00 pm | Sunday, October 6, 12:00 midnight |
| 1947 | Sunday, April 6, 2:00 am | Sunday, October 5, 3:00 am |
| 1948 | Sunday, April 4, 2:00 am | Sunday, October 3, 3:00 am |
| 1949 | Sunday, April 3, 2:00 am | Sunday, October 2, 3:00 am |
| All times are local for Lisbon. * All or part of this period was on double DST. |
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