15 Sep 1991, 02:00
| Start DST: | Sunday, 12 April 1987 — 1 hour forward |
|---|---|
| End DST: | Sunday, 13 September 1987 — 1 hour backward |
12 Apr
Forward 1 hour
12 Apr 1987 - Daylight Saving Time Started
When local standard time was about to reach
Sunday, 12 April 1987, 02:00:00 clocks were turned forward 1 hour to
Sunday, 12 April 1987, 03:00:00 local daylight time instead.
Sunrise and sunset were about 1 hour later on 12 Apr 1987 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 Sep
Back 1 hour
13 Sep 1987 - Daylight Saving Time Ended
When local daylight time was about to reach
Sunday, 13 September 1987, 02:00:00 clocks were turned backward 1 hour to
Sunday, 13 September 1987, 01:00:00 local standard time instead.
Sunrise and sunset were about 1 hour earlier on 13 Sep 1987 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, 4 May, 02:00 | Sunday, 14 September, 02:00 |
| 1987 | Sunday, 12 April, 02:00 | Sunday, 13 September, 02:00 |
| 1988 | Sunday, 17 April, 02:00 | Sunday, 11 September, 02:00 |
| 1989 | Sunday, 16 April, 02:00 | Sunday, 17 September, 02:00 |
| All times are local for 37°59'37.9"N, 100°57'45.5"E. | ||
Data for the years before 1970 is not available for 37°59'37.9"N, 100°57'45.5"E, however, we have earlier time zone history for Chongqing available.
Detailed time zone and clock changes in 37°59'37.9"N, 100°57'45.5"E