| Local time | DST? | UTC offset | Zone name | Event/details |
|---|
| Sunday, April 2, 2000 at 1:59:59 AM | No | -5 hours | EST | |
| Sunday, April 2, 2000 at 3:00:00 AM | 1 hour | -4 hours | EDT | DST starts | More info |
| Sunday, October 29, 2000 at 1:59:59 AM | 1 hour | -4 hours | EDT | |
| Sunday, October 29, 2000 at 1:00:00 AM | No | -5 hours | EST | DST ends | More info |
| Sunday, April 1, 2001 at 1:59:59 AM | No | -5 hours | EST | |
| Sunday, April 1, 2001 at 3:00:00 AM | 1 hour | -4 hours | EDT | DST starts | More info |
| Sunday, October 28, 2001 at 1:59:59 AM | 1 hour | -4 hours | EDT | |
| Sunday, October 28, 2001 at 1:00:00 AM | No | -5 hours | EST | DST ends | More info |
| Sunday, April 7, 2002 at 1:59:59 AM | No | -5 hours | EST | |
| Sunday, April 7, 2002 at 3:00:00 AM | 1 hour | -4 hours | EDT | DST starts | More info |
| Sunday, October 27, 2002 at 1:59:59 AM | 1 hour | -4 hours | EDT | |
| Sunday, October 27, 2002 at 1:00:00 AM | No | -5 hours | EST | DST ends | More info |
| Sunday, April 6, 2003 at 1:59:59 AM | No | -5 hours | EST | |
| Sunday, April 6, 2003 at 3:00:00 AM | 1 hour | -4 hours | EDT | DST starts | More info |
| Sunday, October 26, 2003 at 1:59:59 AM | 1 hour | -4 hours | EDT | |
| Sunday, October 26, 2003 at 1:00:00 AM | No | -5 hours | EST | DST ends | More info |
| Sunday, April 4, 2004 at 1:59:59 AM | No | -5 hours | EST | |
| Sunday, April 4, 2004 at 3:00:00 AM | 1 hour | -4 hours | EDT | DST starts | More info |
| Sunday, October 31, 2004 at 1:59:59 AM | 1 hour | -4 hours | EDT | |
| Sunday, October 31, 2004 at 1:00:00 AM | No | -5 hours | EST | DST ends | More info |
| Sunday, April 3, 2005 at 1:59:59 AM | No | -5 hours | EST | |
| Sunday, April 3, 2005 at 3:00:00 AM | 1 hour | -4 hours | EDT | DST starts | More info |
| Sunday, October 30, 2005 at 1:59:59 AM | 1 hour | -4 hours | EDT | |
| Sunday, October 30, 2005 at 1:00:00 AM | No | -5 hours | EST | DST ends | More info |
| Sunday, April 2, 2006 at 1:59:59 AM | No | -5 hours | EST | |
| Sunday, April 2, 2006 at 3:00:00 AM | 1 hour | -4 hours | EDT | DST starts | More info |
| Sunday, October 29, 2006 at 1:59:59 AM | 1 hour | -4 hours | EDT | |
| Sunday, October 29, 2006 at 1:00:00 AM | No | -5 hours | EST | DST ends | More info |
| Sunday, March 11, 2007 at 1:59:59 AM | No | -5 hours | EST | |
| Sunday, March 11, 2007 at 3:00:00 AM | 1 hour | -4 hours | EDT | DST starts | More info | More info |
| Sunday, November 4, 2007 at 1:59:59 AM | 1 hour | -4 hours | EDT | |
| Sunday, November 4, 2007 at 1:00:00 AM | No | -5 hours | EST | DST ends | More info |
| Sunday, March 9, 2008 at 1:59:59 AM | No | -5 hours | EST | |
| Sunday, March 9, 2008 at 3:00:00 AM | 1 hour | -4 hours | EDT | DST starts | More info | More info |
| Sunday, November 2, 2008 at 1:59:59 AM | 1 hour | -4 hours | EDT | |
| Sunday, November 2, 2008 at 1:00:00 AM | No | -5 hours | EST | DST ends | More info | More info |
| Sunday, March 8, 2009 at 1:59:59 AM | No | -5 hours | EST | |
| Sunday, March 8, 2009 at 3:00:00 AM | 1 hour | -4 hours | EDT | DST starts | More info | More info |
| Sunday, November 1, 2009 at 1:59:59 AM | 1 hour | -4 hours | EDT | |
| Sunday, November 1, 2009 at 1:00:00 AM | No | -5 hours | EST | DST ends | More info |
