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Daylight Saving Time

Many countries around the world observe Daylight Saving Time (DST), also known as Summer Time, during their summer. This transfers one hour of morning daylight to the evening. To accomplish this the clocks are set ahead one hour in the spring and turned back one hour in the fall.

For more details, visit the Daylight Saving Time page at Wikipedia.

 


 

Rules Used While Creating the Calendars

The DST rules have been researched for the years starting around the year 2000 to the present. For some regions, we have a Time Zone setting that can handle locations that have used different time offsets and/or multiple DST rules. The future dates of these observances are set by the government of the country or locality and are subject to change. Also see FAQs and DST adjustments.

Calendars created for all future years to 2099 will use the DST rules in this table. The Time Zone setting (which can handle time offset changes) uses these rules to calculate DST transition dates, and has precedence over applying DST rules to a location as some locations use two (e.g. Bahamas.)

For corrections or to have a new country added, please contact us.


Northern Hemisphere

Region / Rule Name Year(s) DST Begins DST Ends
Azerbaijan
 
2016 and later DST not observed DST not observed
1997 to 2015 Last Sunday in March Last Sunday in October
1996 and earlier
 
DST not observed DST not observed
Bahamas
 
1976 and later See North America rules.
1975 and earlier, you must use the America/Nassau time zone setting.
 
1964 to 1975 Last Sunday in April Last Sunday in October
1963 and earlier
 
DST not observed DST not observed
Baja California – Mexico
 
For use with the America/Tijuana time zone setting.
 
1954 to 1960 Last Sunday in April Last Sunday in September
1948/1949 1948 April 5 1949 January 14
1931 April 1 September 30
Canada[1] 1976 and later See North America rules.
 
1974 & 1975 for use with the Atlantic/Bermuda time zone setting.
 
1974 and 1975 Last Sunday in April Last Sunday in October
1973 and earlier, rules not implemented yet, using no DST.
 
Cuba
 
2013 and later Second Sunday in March First Sunday in November
2012 April 1 November 4
2011 March 20 November 13
2009 and 2010 Second Sunday in March Last Sunday in October
2008 March 16 October 26
2007 March 11 October 28
2006 DST continues from 2005 October 29
2005 DST all year DST all year
2004 March 28 DST does not end
2000 to 2003 First Sunday in April Last Sunday in October
1998 and 1999 Last Sunday in March Last Sunday in October
1997 April 6 October 12
1996 April 7 October 6
1991 to 1995 First Sunday in April Second Sunday in October
1990 and earlier
 
not implemented yet, using no DST observed
Egypt 2011 and later DST not observed DST not observed
2010 and earlier
 
Last Friday in April Last Friday in September
Europe
 
1996 and later Last Sunday in March Last Sunday in October
1981 to 1995 Last Sunday in March Last Sunday in September
1979 & 1980 First Sunday in April Last Sunday in September
1978 First Sunday in April October 1
1977 First Sunday in April Last Sunday in September
1976 and earlier
 
not implemented yet, using no DST observed
Iran[2]
 
2008 and later March 20 September 21
2006 & 2007 DST not observed DST not observed
1989 to 2005 March 20 September 21
1980 to 1988 DST not observed DST not observed
1979 and earlier
 
March 20 September 21
Israel 2014 and later[3] Friday before last Sunday in March Last Sunday in October
2013 Friday, March 29 Sunday, October 27
2012 Friday, March 30 Sunday, September 23
2011 Friday, April 1 Sunday, October 2
2010 Friday, March 26 Sunday, September 12
2009 Friday, March 27 Sunday, September 27
2008 Friday, March 28 Sunday, October 5
2007 Friday, March 30 Sunday, September 16
2000 to 2006 Second Friday in March Fourth Sunday in October
1999 and earlier
 
Third Friday in March First Sunday in September
Jordan
 
all years
 
Last Friday before April 2
 
Last Friday in October
Libya
 
For use with the Africa/Tripoli time zone setting.
 
2014 and later DST not observed
2013 March 29 October 25
1998 to 2012 DST not observed
1997 April 4 October 4
1990 to 1996 DST not observed
1987 to 1989 April 1 October 1
1986 April 4 October 3
1985 April 6 October 1
1982 to 1984 April 1 October 1
1957 to 1981 DST not observed
1955/1956 1955 September 30 1956 January 1
1953/1954 1953 October 9 1954 January 1
1951/1952 1951 October 14 1952 January 1
1950 and earlier DST not observed
Mexico[4]
 
2002 and later First Sunday in April Last Sunday in October
2001 May 6 September 30
1996 to 2000 First Sunday in April Last Sunday in October
1951 to 1995 DST not observed DST not observed
1950 February 12 July 30
1940 to 1949[5] DST not observed[5] DST not observed[5]
1939 February 5 June 25
1938 and earlier
 
DST not observed DST not observed
North America
USA[6], Canada[1], Bahamas & some Mexico[4]
2007 and later Second Sunday in March First Sunday in November
2006 to 1987 First Sunday in April Last Sunday in October
1976 to 1986 Last Sunday in April Last Sunday in October
1975 and earlier
 
See Bahamas, Canada, or United States.
Russia[7]
 
2015 and later DST not observed DST not observed
2014 DST continues from 2013 Last Sunday in October
2012 and 2013 DST all year DST all year
2011 Last Sunday in March DST does not end
2010 to 1996 Last Sunday in March Last Sunday in October
1995 and earlier
 
Last Sunday in March Last Sunday in September
South Korea
 
Use the Asia/Seoul time zone setting.
1989 and later DST not observed DST not observed
1987 and 1988 Second Sunday in May Second Sunday in October
1961 to 1986 DST not observed DST not observed
1958 to 1960 First Sunday in May Third Sunday in September
1957 May 5 September 22
1956 May 20 September 30
1955 May 5 (Thursday) September 9 (Friday)
1952 to 1954 DST not observed DST not observed
1951 May 6 September 9
1950 April 1 (Saturday) September 10
1949 April 3 September 11
1948 June 1 (Tuesday) September 13 (Monday)
1947 and earlier
 
DST not observed DST not observed
Syria
 
all years
 
Last Friday before April 2
 
Last Friday in October
Turkey[8]
 
2017 and later DST all year DST all year
2016 Last Sunday in March no DST end date
2015 Last Sunday in March November 8
2014 March 31 (Monday) Last Sunday in October
2013 to 2012 Last Sunday in March Last Sunday in October
2011 March 28 (Monday) Last Sunday in October
1996 to 2010 Last Sunday in March Last Sunday in October
1995 and earlier
 
Last Sunday in March
 
Last Sunday in September
Turks & Caicos Use the America/Grand_Turk time zone setting which handles all DST observance and time offset changes.
 
United States[6] 1976 and later See North America rules.
 
1975 and earlier, rules not implemented yet, using no DST.
 

Southern Hemisphere

In the southern hemisphere, DST ends before it begins in a calendar year.

Region / Rule Name Year(s) DST Ends DST Begins
Argentina 2010 and later DST not observed DST not observed
2009 March 15 DST not observed
2008 March 16 October 19
2007 DST not in effect December 30
2001 to 2006 DST not observed DST not observed
2000 March 3 DST not observed
1999 DST not in effect October 3
1994 to 1998 DST not observed DST not observed
1993 March 7 DST not observed
1989 to 1992 First Sunday in March Third Sunday in October
1988 DST not in effect December 1
1987 and earlier
 
rules not implemented yet, using no DST observed
Australia[9] 2011 and later First Sunday in April First Sunday in October
2001 to 2010 Last Sunday in March Last Sunday in October
2000 Last Sunday in March August 27
1999 and earlier
 
Last Sunday in March Last Sunday in October
Brazil
 
all years Third Sunday in February Third Sunday in October
Chile
 
2019 and later April, Sunday with day number 2 or greater September, Sunday with day number 2 or greater
2016 to 2018 May, Sunday with day number 9 or greater August, Sunday with day number 9 or greater
2015 DST continues from previous year DST all year
2012 to 2014 April, Sunday with day number 23 or greater September, Sunday with day number 2 or greater
2011 May 8 August 21
2010 April 4 October 10
2009 March 15 October 11
2008 March 30 October 12
2000 to 2007 March, Sunday with day number 9 or greater October, Sunday with day number 9 or greater
1999 April 4 October 10
1998 March 15 September 27
1997 March 30 October 12
1991 to 1996 March, Sunday with day number 9 or greater October, Sunday with day number 9 or greater
1990 March 11 September 16
1988 and 1989 March, Sunday with day number 9 or greater October, Sunday with day number 9 or greater
1987 April 12 October 11
1974 to 1986 March, Sunday with day number 9 or greater October, Sunday with day number 9 or greater
1973 March 11 September 30
1972 March 12 October 15
1971 March 14 October 10
1970 March 29 October 11
1969 March 30 November 23
1968 DST not observed November 3
1967 and earlier
 
rules not implemented yet, using no DST observed
Falkland Islands[10] 2012 and later Third Sunday in April First Sunday in September
2011
 
DST all year DST all year
2010 and earlier Third Sunday in April First Sunday in September
Fiji
 
2012 and later Next to last Sunday in January Fourth Sunday in October
2011 March 6 Fourth Sunday in October
2010 April 25 Fourth Sunday in October
2009 DST not in effect November 29
2008 and earlier
 
DST not observed DST not observed
Namibia
 
all years
 
First Sunday in April First Sunday in September
 
New Zealand 2009 and later First Sunday in April Last Sunday in September
2008 and earlier
 
Third Sunday in March First Sunday in October
Uruguay
 
2016 and later DST not observed DST not observed
2015 March 8 DST not observed
2006 to 2014 Second Sunday in March First Sunday in October
2005 March 27 October 9
2004 March 7 September 19
2003 and earlier
 
First Sunday in March Third Sunday in October


Footnotes:

  1. Saskatchewan, Canada does not observe DST. For some provinces, including Saskatchewan, there are smaller geographic areas within them that set their own rules, see Time in Canada at Wikipedia.

  2. Iran starts DST on the first day of Farvardin in the Iranian calendar and ends on the last day of Shahrivar. The dates used on this site are approximate. See Iran Daylight Saving time at Wikipedia.

  3. Currently, Israeli law defines the end of DST to start on the Friday before the last Sunday in March and end on the last Sunday in October. See Israel Daylight Saving time at Wikipedia.

  4. The state of Baja California and some Mexican cities that border the United States follow the North America (USA) DST rules.

    The state of Sonora does not observe DST.

  5. Some locations observed War time, Peace time, or DST during World War II. Research local information and adjust times accordingly.

  6. In the Unitied States, Arizona and Hawaii do not observe DST. Some cities in Arizona, such as Chinle, Kayenta and Monument Valley Navajo Tribal Park in the Navajo Nation do observe DST. Indiana currently observes DST, but this has varied over previous years, see Time in Indiana at Wikipedia.

  7. In July 2014, Russia voted to stop observing DST effective that year and to make Standard (Winter) Time permanent. Russia stoped observing DST on Sunday, October 26, 2014. For the year 2015 and all future years, Russia will stay on Standard (Winter) Time all year long. See Time in Russia at Wikipedia.

  8. For the year 2011, Turkey moved the start of DST to Monday, March 28, one day later than the rest of Europe.

    For the year 2014, Turkey switched to European Summer Time on Monday, March 31.

    In 2016, Turkey cancelled DST observance and decided to stay on Summer Time (+1 hour to the base time zone) all year. This effectively means the country observes permanent UTC+3, instead of the existing UTC+2.

    See Summer Time in Europe #Turkey at Wikipedia.

  9. In Australia, the states of Queensland, Western Australia, and the Northern Territory do not observe DST.

  10. For the year 2011, the Falkland Islands will stay on DST all year long. Outside of Stanley and the RAF Mount Pleasant, Camp Time is used which does not observe DST.

 

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