Daylight Saving Time/ Summer Time starts in March or April in the northern hemisphere and September or October in the southern hemisphere.
Here are all the start dates and times for Daylight Saving Time/ Summer Time listed alphabetically by country or, in the case of Europe, continent:
Australia, except Western Australia, Northern Territory, Queensland, Cocos Islands, Christmas Island and Norfolk Island
- - - the 1st Sunday of October at 02:00 local Standard Time
- - - - - - (01:59:59 LHST --> 02:30:00 LHDT)
- - - - - - (01:59:59 AEST --> 03:00:00 AEDT)
- - - - - - (01:59:59 ACST --> 03:00:00 ACDT)
Bahamas
- - - the 2nd Sunday of March at 02:00 EST
- - - - - - (01:59:59 EST --> 03:00:00 EDT)
Bermuda (U.K.)
- - - the 2nd Sunday of March at 02:00 AST
- - - - - - (01:59:59 AST --> 03:00:00 ADT)
Brazil: in Mato Grosso, Mato Grosso do Sul, Bahia, Distrito Federal, Espirito Santo, Goias, Minas Gerais, Parana, Rio de Janeiro, Rio Grande do Sul, Santa Catarina and São Paulo only
- - - the 3rd Sunday of October at 00:00 local Standard Time
- - - - - - (23:59:59 AMT --> 01:00:00 AMST)
- - - - - - (23:59:59 BRT --> 01:00:00 BRST)
Canada: all except most of Saskatchewan, Southampton Island, parts of British Columbia, parts of Ontario, and part of eastern Quebec
- - - the 2nd Sunday of March at 02:00 local Standard Time
- - - - - - (01:59:59 NST --> 03:00:00 NDT)
- - - - - - (01:59:59 AST --> 03:00:00 ADT)
- - - - - - (01:59:59 EST --> 03:00:00 EDT)
- - - - - - (01:59:59 CST --> 03:00:00 CDT)
- - - - - - (01:59:59 MST --> 03:00:00 MDT)
- - - - - - (01:59:59 PST --> 03:00:00 PDT)
Chile, including Easter Island
- - - the day after the 2nd Saturday of October at 00:00 CLT
- - - - - - (23:59:59 CLT --> 01:00:00 CLST)
- - - - - - (21:59:59 EAST --> 23:00:00 EASST)
Cuba
- - - the 2nd Sunday of March at 00:00 Cuba Standard Time
- - - - - - (23:59:59 CST --> 01:00:00 CDT)
- - - - - - Note: Despite the facts that Cuba Standard Time shares the same abbreviation with Central Standard Time and Cuba Daylight Saving Time shares the same abbreviation with Central Daylight Saving Time, Cuba Time is one hour ahead of Central Time.
Europe: all except Russia, Georgia, Kazakhstan, Belarus and Iceland
- - - the last Sunday of March at 01:00 UTC (00:00 UTC in Azerbaijan)
- - - - - - (03:59:59 AZT --> 05:00:00 AZST)
- - - - - - (02:59:59 EET --> 04:00:00 EEST)
- - - - - - (01:59:59 CET --> 03:00:00 CEST)
- - - - - - (00:59:59 WET --> 02:00:00 WEST)
- - - - - - (00:59:59 GMT --> 02:00:00 BST)
- - - - - - (00:59:59 GMT --> 02:00:00 IST)
Fiji
- - - the Sunday after the 3rd Thursday of October at 02:00 FJT
- - - - - - (01:59:59 FJT --> 03:00:00 FJST)
Greenland (Denmark): all except the Danmarkshavn area
- - - the 2nd Sunday of March at 02:00 AST in the Qaanaaq area
- - - - - - (01:59:59 AST --> 03:00:00 ADT)
- - - the last Sunday of March at 01:00 UTC elsewhere
- - - - - - (23:59:59 EGT --> 01:00:00 EGST)
- - - - - - (21:59:59 WGT --> 23:00:00 WGST)
Iran
- - - 21 or 22 March at 00:00 IRST
- - - - - - (23:59:59 IRST --> 01:00:00 IRDT)
Israel
- - - the day after the last Thursday of March at 02:00 IST
- - - - - - (01:59:59 IST --> 03:00:00 IDT)
Jordan
- - - the day after the last Thursday of March at 00:00 EET
- - - - - - (23:59:59 EET --> 01:00:00 EEST)
Lebanon
- - - the last Sunday of March at 00:00 EET
- - - - - - (23:59:59 EET --> 01:00:00 EEST)
Mexico: all except Sonora
- - - the 2nd Sunday of March at 02:00 local Standard Time in 10 cities along the U.S. border
- - - the 1st Sunday of April at 02:00 local Standard Time in most of the country
- - - - - - (01:59:59 CST --> 03:00:00 CDT)
- - - - - - (01:59:59 MST --> 03:00:00 MDT)
- - - - - - (01:59:59 PST --> 03:00:00 PDT)
Morocco
- - - the last Sunday of April at 02:00 WET
- - - 2 Shawwal at 02:00 WET (Summer Time resumes after being suspended for the month of Ramadan)
- - - - - - (01:59:59 WET --> 03:00:00 WEST)
Namibia
- - - the 1st Sunday of September at 02:00 WAT
- - - - - - (01:59:59 WAT --> 03:00:00 WAST)
New Zealand: the mainland and the Chatham Islands
- - - the last Sunday of September at 02:00 NZST
- - - - - - (02:44:59 CHAST --> 03:45:00 CHADT)
- - - - - - (01:59:59 NZST --> 03:00:00 NZDT)
Paraguay
- - - the 1st Sunday of October at 00:00 PYT
- - - - - - (23:59:59 PYT --> 01:00:00 PYST)
Saint-Pierre & Miquelon Islands (France)
- - - the 2nd Sunday of March at 02:00 PMST
- - - - - - (01:59:59 PMST --> 03:00:00 PMDT)
Samoa
- - - the last Sunday of September at 03:00 West Samoa Time
- - - - - - (02:59:59 WST --> 04:00:00 WSST)
Syria
- - - the last Friday of March at 00:00 EET
- - - - - - (23:59:59 EET --> 01:00:00 EEST)
Turks & Caicos Islands (U.K.)
- - - the 2nd Sunday of March at 02:00 EST
- - - - - - (01:59:59 EST --> 03:00:00 EDT)
United States of America: all except Hawaii, Arizona outside of the Navaho Nation, Metlakatla AK, and the five unincorporated territories
- - - the 2nd Sunday of March at 02:00 local Standard Time
- - - - - - (01:59:59 EST --> 03:00:00 EDT)
- - - - - - (01:59:59 CST --> 03:00:00 CDT)
- - - - - - (01:59:59 MST --> 03:00:00 MDT)
- - - - - - (01:59:59 PST --> 03:00:00 PDT)
- - - - - - (01:59:59 AKST --> 03:00:00 AKDT)
- - - - - - (01:59:59 HAST --> 03:00:00 HADT)
Uruguay
- - - the 1st Sunday of October at 02:00 UYT
- - - - - - (01:59:59 UYT --> 03:00:00 UYST)
Just remember 'spring forward, fall back'.
In the United States, clocks moved forward for Daylight Saving Time on March 14, 2010. This is a routine practice where clocks are set forward by one hour in the spring to extend evening daylight.
Half way around the sun from spring we have fall, or autumn.
"Spring forward" refers to the practice of advancing the clock by one hour during the spring season to make better use of daylight. This time adjustment is typically done in regions that observe daylight saving time.
Daylight saving time typically starts in the spring and ends in the fall. In most regions, clocks "spring forward" in the spring and "fall back" in the fall.
Just remember 'spring forward, fall back'.
SPRING forward, FALL back. SPRING forward, FALL back.
Clocks "spring forward" one hour in the spring for Daylight Saving Time, typically on the second Sunday in March.
In 2010, the clocks will spring forward on March 14th. They will spring forward one hour, so when it is 6:00 in your head, the clock will say its 7:00.....I think...oh yes yes that is right!!!
Daylight Saving Time was observed in 2011 on March 13th, when clocks were set forward one hour.
In the United States, clocks moved forward for Daylight Saving Time on March 14, 2010. This is a routine practice where clocks are set forward by one hour in the spring to extend evening daylight.
Half way around the sun from spring we have fall, or autumn.
Clocks get turned BACK one hour - an easy way to remember this operation is "Spring Forward, Fall Back."
"Spring forward" refers to the practice of advancing the clock by one hour during the spring season to make better use of daylight. This time adjustment is typically done in regions that observe daylight saving time.
Daylight saving time typically starts in the spring and ends in the fall. In most regions, clocks "spring forward" in the spring and "fall back" in the fall.
There is not a set date for either of these times. Nevertheless, they follow the rule that the last Sunday in March the clocks go forward. The last Sunday in October the clocks go back. This can be remembered with the mnemonic "the clocks spring forward in spring and fall back in fall"
No, time does not go backwards in the spring. However, we do "spring forward" by moving our clocks ahead one hour for daylight saving time.