Nov 3, 2024, 2:00 am
| Start DST: | Sunday, April 30, 1978 — 1 hour forward |
|---|---|
| End DST: | Sunday, October 29, 1978 — 1 hour backward |
Apr 30
Forward 1 hour
Apr 30, 1978 - Daylight Saving Time Started
When local standard time was about to reach
Sunday, April 30, 1978, 2:00:00 am clocks were turned forward 1 hour to
Sunday, April 30, 1978, 3:00:00 am local daylight time instead.
Sunrise and sunset were about 1 hour later on Apr 30, 1978 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.
Oct 29
Back 1 hour
Oct 29, 1978 - Daylight Saving Time Ended
When local daylight time was about to reach
Sunday, October 29, 1978, 2:00:00 am clocks were turned backward 1 hour to
Sunday, October 29, 1978, 1:00:00 am local standard time instead.
Sunrise and sunset were about 1 hour earlier on Oct 29, 1978 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) |
|---|---|---|
| 1970 | Sunday, April 26, 2:00 am | Sunday, October 25, 2:00 am |
| 1971 | Sunday, April 25, 2:00 am | Sunday, October 31, 2:00 am |
| 1972 | Sunday, April 30, 2:00 am | Sunday, October 29, 2:00 am |
| 1973 | Sunday, April 29, 2:00 am | Sunday, October 28, 2:00 am |
| 1974 | Sunday, January 6, 2:00 am | Sunday, October 27, 2:00 am |
| 1975 | Sunday, February 23, 2:00 am | Sunday, October 26, 2:00 am |
| 1976 | Sunday, April 25, 2:00 am | Sunday, October 31, 2:00 am |
| 1977 | Sunday, April 24, 2:00 am | Sunday, October 30, 2:00 am |
| 1978 | Sunday, April 30, 2:00 am | Sunday, October 29, 2:00 am |
| 1979 | Sunday, April 29, 2:00 am | Sunday, October 28, 2:00 am |
| All times are local for San Diego. | ||
Data for the years before 1970 is not available for San Diego, however, we have earlier time zone history for Los Angeles available.