Sep 15, 1991, 2:00 am
| Start DST: | Tuesday, April 15, 1947 — 1 hour forward |
|---|---|
| End DST: | Friday, October 31, 1947 — 1 hour backward |
Apr 15
Forward 1 hour
Apr 15, 1947 - Daylight Saving Time Started
When local standard time was about to reach
Tuesday, April 15, 1947, 12:00:00 midnight clocks were turned forward 1 hour to
Tuesday, April 15, 1947, 1:00:00 am local daylight time instead.
Sunrise and sunset were about 1 hour later on Apr 15, 1947 than the day before. There was more light in the evening.
Also called Spring Forward, Summer Time, and Daylight Savings Time.
Nov 1
Back 1 hour
Nov 1, 1947 - Daylight Saving Time Ended
When local daylight time was about to reach
Saturday, November 1, 1947, 12:00:00 midnight clocks were turned backward 1 hour to
Friday, October 31, 1947, 11:00:00 pm local standard time instead.
Sunrise and sunset were about 1 hour earlier on Nov 1, 1947 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) |
|---|---|---|
| 1925 — 1939 | DST not observed | |
| 1940 | Saturday, June 1, 12:00 midnight | Sunday, October 13, 12:00 midnight |
| 1941 | Saturday, March 15, 12:00 midnight | Sunday, November 2, 12:00 midnight |
| 1942 | Saturday, January 31, 12:00 midnight | No DST End |
| 1943 — 1944 | DST observed all year | |
| 1945 | No DST Start | Sunday, September 2, 12:00 midnight |
| 1946 | Wednesday, May 15, 12:00 midnight | Tuesday, October 1, 12:00 midnight |
| 1947 | Tuesday, April 15, 12:00 midnight | Saturday, November 1, 12:00 midnight |
| 1948 | Saturday, May 1, 12:00 midnight | Friday, October 1, 12:00 midnight |
| 1949 | Sunday, May 1, 12:00 midnight | Saturday, May 28, 12:00 midnight |
| All times are local for Shanghai. | ||