Mar 8, 2009, 12:00 midnight
| End DST: | Thursday, February 28, 1991 — 1 hour backward |
|---|
Mar 1
Back 1 hour
Mar 1, 1991 - Daylight Saving Time Ended
When local daylight time was about to reach
Friday, March 1, 1991, 12:00:00 midnight clocks were turned backward 1 hour to
Thursday, February 28, 1991, 11:00:00 pm local standard time instead.
Sunrise and sunset were about 1 hour earlier on Mar 1, 1991 than the day before. There was more light in the morning.
Also called Fall Back and Winter Time.
Jun 1
Forward 1 hour
Jun 1, 1991 - Time Zone Change (WART → ART)
When local standard time was about to reach
Saturday, June 1, 1991, 12:00:00 midnight clocks were turned forward 1 hour to
Saturday, June 1, 1991, 1:00:00 am local standard time instead.
Sunrise and sunset were about 1 hour later on Jun 1, 1991 than the day before. There was more light in the evening.
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 | Wednesday, March 14, 12:00 midnight | Monday, October 15, 12:00 midnight |
| 1991 | Friday, March 1, 12:00 midnight | No DST Start |
| 1992 — 1998 | DST not observed | |
| 1999 | No DST End | Sunday, October 3, 12:00 midnight |
| All times are local for San Luis. | ||