Time zone changes and daylight saving time start/end dates between year 2000 and 2009For each change, two lines are displayed: line #1 is the time and time zone one second before the change line #2 is the time and time zone when the change has happened | Local time | DST? | UTC offset | Zone name | Event/details |
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| Saturday, March 4, 2000 at 11:59:59 PM | 1 hour | -3 hours | PYST | | | Saturday, March 4, 2000 at 11:00:00 PM | No | -4 hours | PYT | DST ends | | Saturday, September 30, 2000 at 11:59:59 PM | No | -4 hours | PYT | | | Sunday, October 1, 2000 at 1:00:00 AM | 1 hour | -3 hours | PYST | DST starts | | Saturday, March 3, 2001 at 11:59:59 PM | 1 hour | -3 hours | PYST | | | Saturday, March 3, 2001 at 11:00:00 PM | No | -4 hours | PYT | DST ends | | Saturday, October 6, 2001 at 11:59:59 PM | No | -4 hours | PYT | | | Sunday, October 7, 2001 at 1:00:00 AM | 1 hour | -3 hours | PYST | DST starts | | Saturday, April 6, 2002 at 11:59:59 PM | 1 hour | -3 hours | PYST | | | Saturday, April 6, 2002 at 11:00:00 PM | No | -4 hours | PYT | DST ends | | Saturday, August 31, 2002 at 11:59:59 PM | No | -4 hours | PYT | | | Sunday, September 1, 2002 at 1:00:00 AM | 1 hour | -3 hours | PYST | DST starts | | Saturday, April 5, 2003 at 11:59:59 PM | 1 hour | -3 hours | PYST | | | Saturday, April 5, 2003 at 11:00:00 PM | No | -4 hours | PYT | DST ends | | Saturday, September 6, 2003 at 11:59:59 PM | No | -4 hours | PYT | | | Sunday, September 7, 2003 at 1:00:00 AM | 1 hour | -3 hours | PYST | DST starts | | Saturday, April 3, 2004 at 11:59:59 PM | 1 hour | -3 hours | PYST | | | Saturday, April 3, 2004 at 11:00:00 PM | No | -4 hours | PYT | DST ends | | Saturday, October 16, 2004 at 11:59:59 PM | No | -4 hours | PYT | | | Sunday, October 17, 2004 at 1:00:00 AM | 1 hour | -3 hours | PYST | DST starts | | Saturday, March 12, 2005 at 11:59:59 PM | 1 hour | -3 hours | PYST | | | Saturday, March 12, 2005 at 11:00:00 PM | No | -4 hours | PYT | DST ends | | Saturday, October 15, 2005 at 11:59:59 PM | No | -4 hours | PYT | | | Sunday, October 16, 2005 at 1:00:00 AM | 1 hour | -3 hours | PYST | DST starts | | Saturday, March 11, 2006 at 11:59:59 PM | 1 hour | -3 hours | PYST | | | Saturday, March 11, 2006 at 11:00:00 PM | No | -4 hours | PYT | DST ends | | Saturday, October 14, 2006 at 11:59:59 PM | No | -4 hours | PYT | | | Sunday, October 15, 2006 at 1:00:00 AM | 1 hour | -3 hours | PYST | DST starts | | Saturday, March 10, 2007 at 11:59:59 PM | 1 hour | -3 hours | PYST | | | Saturday, March 10, 2007 at 11:00:00 PM | No | -4 hours | PYT | DST ends | | Saturday, October 20, 2007 at 11:59:59 PM | No | -4 hours | PYT | | | Sunday, October 21, 2007 at 1:00:00 AM | 1 hour | -3 hours | PYST | DST starts | | Saturday, March 8, 2008 at 11:59:59 PM | 1 hour | -3 hours | PYST | | | Saturday, March 8, 2008 at 11:00:00 PM | No | -4 hours | PYT | DST ends | | Saturday, October 18, 2008 at 11:59:59 PM | No | -4 hours | PYT | | | Sunday, October 19, 2008 at 1:00:00 AM | 1 hour | -3 hours | PYST | DST starts | | Saturday, March 7, 2009 at 11:59:59 PM | 1 hour | -3 hours | PYST | | | Saturday, March 7, 2009 at 11:00:00 PM | No | -4 hours | PYT | DST ends | | Saturday, October 17, 2009 at 11:59:59 PM | No | -4 hours | PYT | | | Sunday, October 18, 2009 at 1:00:00 AM | 1 hour | -3 hours | PYST | DST starts |
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