Last change: 2009
Mar
8
1 hour Back
Mar 8, 2009, 12:00 midnight
| Start DST: | Sunday, October 3, 1999 — No time change due to simultaneous time zone change |
|---|
Oct 3
No change
Oct 3, 1999 - Daylight Saving Time Started
DST started on Sunday, October 3, 1999, 12:00:00 midnight. However, clocks were not changed because San Luis switched time zones at the same 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 | 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. | ||