Sep 15, 1991, 2:00 am
| Start DST: | Sunday, May 1, 1949 — 1 hour forward |
|---|---|
| End DST: | Friday, May 27, 1949 — 1 hour backward |
May 1
Forward 1 hour
May 1, 1949 - Daylight Saving Time Started
When local standard time was about to reach
Sunday, May 1, 1949, 12:00:00 midnight clocks were turned forward 1 hour to
Sunday, May 1, 1949, 1:00:00 am local daylight time instead.
Sunrise and sunset were about 1 hour later on May 1, 1949 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.
May 28
Back 1 hour
May 28, 1949 - Daylight Saving Time Ended
When local daylight time was about to reach
Saturday, May 28, 1949, 12:00:00 midnight clocks were turned backward 1 hour to
Friday, May 27, 1949, 11:00:00 pm local standard time instead.
Sunrise and sunset were about 1 hour earlier on May 28, 1949 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, 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. | ||