15 Sep 1991, 02:00
| Start DST: | Saturday, 1 June 1940 — 1 hour forward |
|---|---|
| End DST: | Saturday, 12 October 1940 — 1 hour backward |
1 Jun
Forward 1 hour
1 Jun 1940 - Daylight Saving Time Started
When local standard time was about to reach
Saturday, 1 June 1940, 00:00:00 clocks were turned forward 1 hour to
Saturday, 1 June 1940, 01:00:00 local daylight time instead.
Sunrise and sunset were about 1 hour later on 1 Jun 1940 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.
13 Oct
Back 1 hour
13 Oct 1940 - Daylight Saving Time Ended
When local daylight time was about to reach
Sunday, 13 October 1940, 00:00:00 clocks were turned backward 1 hour to
Saturday, 12 October 1940, 23:00:00 local standard time instead.
Sunrise and sunset were about 1 hour earlier on 13 Oct 1940 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 — 1939 | DST not observed | |
| 1940 | Saturday, 1 June, 00:00 | Sunday, 13 October, 00:00 |
| 1941 | Saturday, 15 March, 00:00 | Sunday, 2 November, 00:00 |
| 1942 | Saturday, 31 January, 00:00 | No DST End |
| 1943 — 1944 | DST observed all year | |
| 1945 | No DST Start | Sunday, 2 September, 00:00 |
| 1946 | Wednesday, 15 May, 00:00 | Tuesday, 1 October, 00:00 |
| 1947 | Tuesday, 15 April, 00:00 | Saturday, 1 November, 00:00 |
| 1948 | Saturday, 1 May, 00:00 | Friday, 1 October, 00:00 |
| 1949 | Sunday, 1 May, 00:00 | Saturday, 28 May, 00:00 |
| All times are local for Shanghai. | ||