Mar 16, 2008, 12:00 midnight
| End DST: | Saturday, March 16, 1991 — 1 hour backward |
|---|---|
| Start DST: | Sunday, October 6, 1991 — 2 hours forward |
Mar 17
Back 1 hour
Mar 17, 1991 - Daylight Saving Time Ended
When local daylight time was about to reach
Sunday, March 17, 1991, 12:00:00 midnight clocks were turned backward 1 hour to
Saturday, March 16, 1991, 11:00:00 pm local standard time instead.
Sunrise and sunset were about 1 hour earlier on Mar 17, 1991 than the day before. There was more light in the morning and less light in the evening.
Also called Fall Back and Winter Time.
Oct 6
Forward 2 hours
Oct 6, 1991 - Daylight Saving Time Started
When local standard time was about to reach
Sunday, October 6, 1991, 12:00:00 midnight clocks were turned forward 2 hours to
Sunday, October 6, 1991, 2:00:00 am local daylight time instead.
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) |
|---|---|---|
| 1990 | Sunday, March 4, 12:00 midnight | Sunday, October 28, 12:00 midnight |
| 1991 | Sunday, March 17, 12:00 midnight | Sunday, October 6, 12:00 midnight |
| 1992 | Sunday, March 1, 12:00 midnight | Sunday, October 18, 12:00 midnight |
| 1993 | Sunday, March 7, 12:00 midnight | No DST Start |
| 1994 — 1998 | DST not observed | |
| 1999 | No DST End | Sunday, October 3, 12:00 midnight |
| All times are local for 21°47'33.9"S, 66°14'18.7"W. | ||
Data for the years before 1970 is not available for 21°47'33.9"S, 66°14'18.7"W, however, we have earlier time zone history for Jujuy available.
Detailed time zone and clock changes in 21°47'33.9"S, 66°14'18.7"W