United States and Canada: Daylight Saving Time Extended Starting 2007

Published 1-Mar-2007. Changed 1-Mar-2007

Canada and United States extends Daylight Saving Time by several weeks starting in 2007.

United States and Canada: Daylight Saving Time Extended Starting 2007 — DST is extended in the United States and Canada.
©iStockphoto.com/Gordana Sermek

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. Standard time 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.

Current Local Times Around the World
Accra	Sat 8:03 pm	Casablanca *	Sat 9:03 pm	Kolkata	Sun 1:33 am	Reykjavik	Sat 8:03 pm
Addis Ababa	Sat 11:03 pm	Chicago *	Sat 3:03 pm	Kuala Lumpur	Sun 4:03 am	Rio de Janeiro	Sat 5:03 pm
Adelaide	Sun 5:33 am	Copenhagen *	Sat 10:03 pm	Kuwait City	Sat 11:03 pm	Riyadh	Sat 11:03 pm
Algiers	Sat 9:03 pm	Dallas *	Sat 3:03 pm	Kyiv *	Sat 11:03 pm	Rome *	Sat 10:03 pm
Almaty	Sun 2:03 am	Dar es Salaam	Sat 11:03 pm	La Paz	Sat 4:03 pm	Salt Lake City *	Sat 2:03 pm
Amman *	Sat 11:03 pm	Darwin	Sun 5:33 am	Lagos	Sat 9:03 pm	San Francisco *	Sat 1:03 pm
Amsterdam *	Sat 10:03 pm	Denver *	Sat 2:03 pm	Lahore	Sun 1:03 am	San Juan	Sat 4:03 pm
Anadyr	Sun 8:03 am	Detroit *	Sat 4:03 pm	Las Vegas *	Sat 1:03 pm	San Salvador	Sat 2:03 pm
Anchorage *	Sat 12:03 pm	Dhaka	Sun 2:03 am	Lima	Sat 3:03 pm	Santiago	Sat 4:03 pm
Ankara	Sat 11:03 pm	Doha	Sat 11:03 pm	Lisbon *	Sat 9:03 pm	Santo Domingo	Sat 4:03 pm
Antananarivo	Sat 11:03 pm	Dubai	Sun 12:03 am	London *	Sat 9:03 pm	São Paulo	Sat 5:03 pm
Asuncion	Sat 4:03 pm	Dublin *	Sat 9:03 pm	Los Angeles *	Sat 1:03 pm	Seattle *	Sat 1:03 pm
Athens *	Sat 11:03 pm	Edmonton *	Sat 2:03 pm	Madrid *	Sat 10:03 pm	Seoul	Sun 5:03 am
Atlanta *	Sat 4:03 pm	Frankfurt *	Sat 10:03 pm	Managua	Sat 2:03 pm	Shanghai	Sun 4:03 am
Auckland	Sun 8:03 am	Guatemala City	Sat 2:03 pm	Manila	Sun 4:03 am	Singapore	Sun 4:03 am
Baghdad	Sat 11:03 pm	Halifax *	Sat 5:03 pm	Melbourne	Sun 6:03 am	Sofia *	Sat 11:03 pm
Bangalore	Sun 1:33 am	Hanoi	Sun 3:03 am	Mexico City *	Sat 3:03 pm	St. John's *	Sat 5:33 pm
Bangkok	Sun 3:03 am	Harare	Sat 10:03 pm	Miami *	Sat 4:03 pm	Stockholm *	Sat 10:03 pm
Barcelona *	Sat 10:03 pm	Havana *	Sat 4:03 pm	Minneapolis *	Sat 3:03 pm	Suva	Sun 8:03 am
Beijing	Sun 4:03 am	Helsinki *	Sat 11:03 pm	Minsk	Sat 11:03 pm	Sydney	Sun 6:03 am
Beirut *	Sat 11:03 pm	Hong Kong	Sun 4:03 am	Montevideo	Sat 5:03 pm	Taipei	Sun 4:03 am
Belgrade *	Sat 10:03 pm	Honolulu	Sat 10:03 am	Montréal *	Sat 4:03 pm	Tallinn *	Sat 11:03 pm
Berlin *	Sat 10:03 pm	Houston *	Sat 3:03 pm	Moscow	Sat 11:03 pm	Tashkent	Sun 1:03 am
Bogota	Sat 3:03 pm	Indianapolis *	Sat 4:03 pm	Mumbai	Sun 1:33 am	Tegucigalpa	Sat 2:03 pm
Boston *	Sat 4:03 pm	Islamabad	Sun 1:03 am	Nairobi	Sat 11:03 pm	Tehran *	Sun 12:33 am
Brasilia	Sat 5:03 pm	Istanbul	Sat 11:03 pm	Nassau *	Sat 4:03 pm	Tokyo	Sun 5:03 am
Brisbane	Sun 6:03 am	Jakarta	Sun 3:03 am	New Delhi	Sun 1:33 am	Toronto *	Sat 4:03 pm
Brussels *	Sat 10:03 pm	Jerusalem *	Sat 11:03 pm	New Orleans *	Sat 3:03 pm	Vancouver *	Sat 1:03 pm
Bucharest *	Sat 11:03 pm	Johannesburg	Sat 10:03 pm	New York *	Sat 4:03 pm	Vienna *	Sat 10:03 pm
Budapest *	Sat 10:03 pm	Kabul	Sun 12:33 am	Oslo *	Sat 10:03 pm	Warsaw *	Sat 10:03 pm
Buenos Aires	Sat 5:03 pm	Karachi	Sun 1:03 am	Ottawa *	Sat 4:03 pm	Washington DC *	Sat 4:03 pm
Cairo	Sat 10:03 pm	Kathmandu	Sun 1:48 am	Paris *	Sat 10:03 pm	Winnipeg *	Sat 3:03 pm
Calgary *	Sat 2:03 pm	Khartoum	Sat 10:03 pm	Perth	Sun 4:03 am	Yangon	Sun 2:33 am
Canberra	Sun 6:03 am	Kingston	Sat 3:03 pm	Philadelphia *	Sat 4:03 pm	Zagreb *	Sat 10:03 pm
Cape Town	Sat 10:03 pm	Kinshasa	Sat 9:03 pm	Phoenix	Sat 1:03 pm	Zürich *	Sat 10:03 pm
Caracas	Sat 4:03 pm	Kiritimati	Sun 10:03 am	Prague *	Sat 10:03 pm