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United States and Canada: Daylight Saving Time Extended Starting 2007
Starting in 2007, the United States and Canada will start Daylight Saving Time (DST) on the second Sunday of March and end on the first Sunday of November.
From 1987 to 2006, DST began on the first Sunday in April and ended on the last Sunday of October. This year, the start date is three or four weeks earlier and the end date is one week later, making Daylight Saving Time a total of four or five weeks longer. In 2007, DST will last four weeks longer than it had previously; in 2008, it will be five weeks longer. If the extension is not successful, the United States might make the decision to revert to the old changeover dates. The amendment for United States is described here: Energy Policy Act 2005.
34 Weeks of Daylight Saving Time
Previously, the number of weeks of Daylight Saving Time was not constant, depending on how early or late the first Sunday in April and last Sunday in October appeared. Since March and November of any given year always start on the same weekday, the duration of DST will now be the same every year. It will be 18 weeks most years, and 19 weeks every fifth or sixth year.
Longest Period of Daylight Saving Time in the World
Most countries in Europe observe Daylight Saving Time from the last Sunday in March to the last Sunday in October, and in recent years Europe typically has had the longest DST period in the world. The new changeover dates for the United States and Canada means that DST will last three or four weeks longer in those countries than in Europe.
Other Locations Changing March 11, 2007
These locations will also start DST on March 11:
Daylight Saving Time Started Early in 1974 and 1975
In 1974, Daylight Saving Time started early in United States, on January 6, following the Emergency Daylight Saving Time Energy Conservation Act of 1973. The plan was to have the United States in year-round Daylight Saving Time for two consecutive years, but it was later amended so that there was standard time between October 27, 1974, and February 23, 1975.
Dates of Daylight Saving Time 1970–2015
These are the dates Daylight Saving Time started and ended in most of the United States and the planned dates until 2015. There is a chance that future dates will change. Also, note that some locations do not observe DST, but those locations that do should use these common start and ending dates. Occasionally locations have changed their clocks on other dates. - Year Start date / End date Daylight duration
- 1970 Apr 26 / Oct 25 [26 weeks]
- 1971 Apr 25 / Oct 31 [27 weeks]
- 1972 Apr 30 / Oct 29 [26 weeks]
- 1973 Apr 29 / Oct 28 [26 weeks]
- 1974 Jan 06 / Oct 27 [42 weeks]
- 1975 Feb 23 / Oct 26 [35 weeks]
- 1976 Apr 25 / Oct 31 [27 weeks]
- 1977 Apr 24 / Oct 30 [27 weeks]
- 1978 Apr 30 / Oct 29 [26 weeks]
- 1979 Apr 29 / Oct 28 [26 weeks]
- 1980 Apr 27 / Oct 26 [26 weeks]
- 1981 Apr 26 / Oct 25 [26 weeks]
- 1982 Apr 25 / Oct 31 [27 weeks]
- 1983 Apr 24 / Oct 30 [27 weeks]
- 1984 Apr 29 / Oct 28 [26 weeks]
- 1985 Apr 28 / Oct 27 [26 weeks]
- 1986 Apr 27 / Oct 26 [26 weeks]
- 1987 Apr 05 / Oct 25 [29 weeks]
- 1988 Apr 03 / Oct 30 [30 weeks]
- 1989 Apr 02 / Oct 29 [30 weeks]
- 1990 Apr 01 / Oct 28 [30 weeks]
- 1991 Apr 07 / Oct 27 [29 weeks]
- 1992 Apr 05 / Oct 25 [29 weeks]
- 1993 Apr 04 / Oct 31 [30 weeks]
- 1994 Apr 03 / Oct 30 [30 weeks]
- 1995 Apr 02 / Oct 29 [30 weeks]
- 1996 Apr 07 / Oct 27 [29 weeks]
- 1997 Apr 06 / Oct 26 [29 weeks]
- 1998 Apr 05 / Oct 25 [29 weeks]
- 1999 Apr 04 / Oct 31 [30 weeks]
- 2000 Apr 02 / Oct 29 [30 weeks]
- 2001 Apr 01 / Oct 28 [30 weeks]
- 2002 Apr 07 / Oct 27 [29 weeks]
- 2003 Apr 06 / Oct 26 [29 weeks]
- 2004 Apr 04 / Oct 31 [30 weeks]
- 2005 Apr 03 / Oct 30 [30 weeks]
- 2006 Apr 02 / Oct 29 [30 weeks]
- 2007 Mar 11 / Nov 04 [34 weeks]
- 2008 Mar 09 / Nov 02 [34 weeks]
- 2009 Mar 08 / Nov 01 [34 weeks]
- 2010 Mar 14 / Nov 07 [34 weeks]
- 2011 Mar 13 / Nov 06 [34 weeks]
- 2012 Mar 11 / Nov 04 [34 weeks]
- 2013 Mar 10 / Nov 03 [34 weeks]
- 2014 Mar 09 / Nov 02 [34 weeks]
- 2015 Mar 08 / Nov 01 [34 weeks]
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2007 Mar 11 / Nov 04 [34 weeks] |
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