Flag for Argentina Clock changes in San Luis, San Luis, Argentina in 2009

Last change: 2009
Oct
11
1 hour Forward

Oct 11, 2009, 12:00 Midnight

End DST: Saturday, March 7, 2009
1 hour backward

Start DST: Sunday, October 11, 2009
1 hour forward

Location of San LuisLocation

Mar 7

Back 1 hour

Mar 7, 2009 - Daylight Saving Time Ended

When local daylight time was about to reach
Sunday, March 8, 2009, 12:00:00 Midnight clocks were turned backward 1 hour to
Saturday, March 7, 2009, 11:00:00 PM local standard time instead

Sunrise and sunset was about 1 hour earlier on Mar 7, 2009 than the day before. There was more light in the morning.

Also called Fall Back and winter time.

More info:
Argentina's San Luis Province Plans Different Time Zone

Oct 11

Forward 1 hour

Oct 11, 2009 - Daylight Saving Time Started

When local standard time was about to reach
Sunday, October 11, 2009, 12:00:00 Midnight clocks were turned forward 1 hour to
Sunday, October 11, 2009, 1:00:00 AM local daylight time instead

Sunrise and sunset was about 1 hour later on Oct 11, 2009 than the day before. There was more light in the evening.

Also called Spring Forward, summer time, and Daylight Savings Time.

More info:
Argentina Says No To Daylight Saving Time

Other years: 2006 | 2007 | 2008 | 2009 | 2010 | 2011 | 2012

Daylight Saving Time in other years

DST changes do not necessarily occur on the same date every year.

YearDST End (Clock backward)DST Start (Clock forward)
2000Friday, March 3, 12:00 MidnightNo DST Start
2001 — 2006DST Not Observed
2007No DST EndSunday, December 30, 12:00 Midnight
2008Sunday, March 9, 12:00 MidnightSunday, October 12, 12:00 Midnight
2009Sunday, March 8, 12:00 MidnightSunday, October 11, 12:00 Midnight
* All times are local, current year is highlighted

Detailed time zone and clock changes in San Luis

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Daylight Saving Time Info