Mar 8, 2015, 2:00 am
| End DST: | Saturday, March 4, 1978 — 1 hour backward |
|---|---|
| Start DST: | Sunday, December 17, 1978 — 1 hour forward |
Mar 5
Back 1 hour
Mar 5, 1978 - Daylight Saving Time Ended
When local daylight time was about to reach
Sunday, March 5, 1978, 12:00:00 midnight clocks were turned backward 1 hour to
Saturday, March 4, 1978, 11:00:00 pm local standard time instead.
Sunrise and sunset were about 1 hour earlier on Mar 5, 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.
Dec 17
Forward 1 hour
Dec 17, 1978 - Daylight Saving Time Started
When local standard time was about to reach
Sunday, December 17, 1978, 12:00:00 midnight clocks were turned forward 1 hour to
Sunday, December 17, 1978, 1:00:00 am local daylight time instead.
Sunrise and sunset were about 1 hour later on Dec 17, 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.
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 | Saturday, April 25, 12:00 midnight | Sunday, June 14, 12:00 midnight |
| 1971 | DST not observed | |
| 1972 | Sunday, April 23, 12:00 midnight | Sunday, July 16, 12:00 midnight |
| 1973 | DST not observed | |
| * 1974 | Sunday, January 13, 12:00 midnight | Sunday, September 1, 12:00 midnight |
| 1975 | No DST Start | Sunday, March 30, 12:00 midnight |
| 1976 | Sunday, December 19, 12:00 midnight | No DST End |
| 1977 | Sunday, December 4, 12:00 midnight | Sunday, March 6, 12:00 midnight |
| 1978 | Sunday, December 17, 12:00 midnight | Sunday, March 5, 12:00 midnight |
| 1979 | Sunday, April 29, 12:00 midnight | Sunday, March 4, 12:00 midnight |
| All times are local for Punta Ballena. * All or part of this period was on double DST. |
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Data for the years before 1970 is not available for Punta Ballena, however, we have earlier time zone history for Montevideo available.