Sep 15, 1991, 2:00 am
| Start DST: | Sunday, April 17, 1988 — 1 hour forward |
|---|---|
| End DST: | Sunday, September 11, 1988 — 1 hour backward |
Apr 17
Forward 1 hour
Apr 17, 1988 - Daylight Saving Time Started
When local standard time was about to reach
Sunday, April 17, 1988, 2:00:00 am clocks were turned forward 1 hour to
Sunday, April 17, 1988, 3:00:00 am local daylight time instead.
Sunrise and sunset were about 1 hour later on Apr 17, 1988 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.
Sep 11
Back 1 hour
Sep 11, 1988 - Daylight Saving Time Ended
When local daylight time was about to reach
Sunday, September 11, 1988, 2:00:00 am clocks were turned backward 1 hour to
Sunday, September 11, 1988, 1:00:00 am local standard time instead.
Sunrise and sunset were about 1 hour earlier on Sep 11, 1988 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) |
|---|---|---|
| 1980 — 1985 | DST not observed | |
| 1986 | Sunday, May 4, 2:00 am | Sunday, September 14, 2:00 am |
| 1987 | Sunday, April 12, 2:00 am | Sunday, September 13, 2:00 am |
| 1988 | Sunday, April 17, 2:00 am | Sunday, September 11, 2:00 am |
| 1989 | Sunday, April 16, 2:00 am | Sunday, September 17, 2:00 am |
| All times are local for Zhangjiakou. | ||
Data for the years before 1970 is not available for Zhangjiakou, however, we have earlier time zone history for Shanghai available.