Last change: 1979
Oct
21
1 hour Back
Oct 21, 1979, 3:30 am
| End DST: | Sunday, October 20, 1974 — 1 hour backward |
|---|
Oct 20
Back 1 hour
Oct 20, 1974 - Daylight Saving Time Ended
When local daylight time was about to reach
Sunday, October 20, 1974, 3:30:00 am clocks were turned backward 1 hour to
Sunday, October 20, 1974, 2:30:00 am local standard time instead.
Sunrise and sunset were about 1 hour earlier on Oct 20, 1974 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) |
|---|---|---|
| 1970 | Sunday, April 19, 3:30 am | Sunday, October 18, 3:30 am |
| 1971 | Sunday, April 18, 3:30 am | Sunday, October 17, 3:30 am |
| 1972 | Sunday, April 16, 3:30 am | Sunday, October 22, 3:30 am |
| * 1973 | Sunday, April 22, 3:30 am | Sunday, October 21, 3:30 am |
| 1974 | No DST Start | Sunday, October 20, 3:30 am |
| 1975 | Sunday, April 20, 3:30 am | Sunday, October 19, 3:30 am |
| 1976 | Sunday, April 18, 3:30 am | Sunday, October 17, 3:30 am |
| 1977 — 1978 | DST not observed | |
| 1979 | Sunday, May 13, 3:30 am | Sunday, October 21, 3:30 am |
| All times are local for Hong Kong. * All or part of this period was on double DST. | ||