Last change: 2009
Mar
15
1 hour Back
Mar 15, 2009, 12:00 midnight
| Start DST: | Sunday, December 15, 1963 — 1 hour forward |
|---|
Dec 15
Forward 1 hour
Dec 15, 1963 - Daylight Saving Time Started
When local standard time was about to reach
Sunday, December 15, 1963, 12:00:00 midnight clocks were turned forward 1 hour to
Sunday, December 15, 1963, 1:00:00 am local daylight time instead.
Sunrise and sunset were about 1 hour later on Dec 15, 1963 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 End (Clock Backward) | DST Start (Clock Forward) |
|---|---|---|
| 1960 — 1962 | DST observed all year | |
| 1963 | Tuesday, October 1, 12:00 midnight | Sunday, December 15, 12:00 midnight |
| 1964 | Sunday, March 1, 12:00 midnight | Thursday, October 15, 12:00 midnight |
| 1965 | Monday, March 1, 12:00 midnight | Friday, October 15, 12:00 midnight |
| 1966 | Tuesday, March 1, 12:00 midnight | Saturday, October 15, 12:00 midnight |
| 1967 | Sunday, April 2, 12:00 midnight | Sunday, October 1, 12:00 midnight |
| 1968 | Sunday, April 7, 12:00 midnight | Sunday, October 6, 12:00 midnight |
| 1969 | Sunday, April 6, 12:00 midnight | No DST Start |
| All times are local for Buenos Aires. | ||