Oct 27, 2024, 2:00 am
Start DST: | Sunday, April 8, 1917 — 1 hour forward |
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End DST: | Monday, September 17, 1917 — 1 hour backward |
Apr 8
Forward 1 hour
Apr 8, 1917 - Daylight Saving Time Started
When local standard time was about to reach
Sunday, April 8, 1917, 2:00:00 am clocks were turned forward 1 hour to
Sunday, April 8, 1917, 3:00:00 am local daylight time instead.
Sunrise and sunset were about 1 hour later on Apr 8, 1917 than the day before. There was more light in the evening.
Also called Spring Forward, Summer Time, and Daylight Savings Time.
Sep 17
Back 1 hour
Sep 17, 1917 - Daylight Saving Time Ended
When local daylight time was about to reach
Monday, September 17, 1917, 3:00:00 am clocks were turned backward 1 hour to
Monday, September 17, 1917, 2:00:00 am local standard time instead.
Sunrise and sunset were about 1 hour earlier on Sep 17, 1917 than the day before. There was more light in the morning.
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) |
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1900 — 1915 | DST not observed | |
1916 | Sunday, May 21, 2:00 am | Sunday, October 1, 3:00 am |
1917 | Sunday, April 8, 2:00 am | Monday, September 17, 3:00 am |
1918 | Sunday, March 24, 2:00 am | Monday, September 30, 3:00 am |
1919 | Sunday, March 30, 2:00 am | Monday, September 29, 3:00 am |
1920 | Sunday, March 28, 2:00 am | Monday, October 25, 3:00 am |
1921 | Sunday, April 3, 2:00 am | Monday, October 3, 3:00 am |
1922 | Sunday, March 26, 2:00 am | Sunday, October 8, 3:00 am |
1923 | Sunday, April 22, 2:00 am | Sunday, September 16, 3:00 am |
1924 | Sunday, April 13, 2:00 am | Sunday, September 21, 3:00 am |
All times are local for London. |