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summer Time Region

The summer time regions of the world and their start/end rules.
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Other Documentation

Most countries that observe daylight saving time are listed in the table below. They all save one hour in the summer and change their clocks some time between midnight and 3 am.

Continent Code Country Beginning and ending days
Africa st_Egypt Egypt Start: Last Friday in April
End: Last Thursday in September
st_Namibia Namibia Start: First Sunday in September
End: First Sunday in April
Asia st_FormerUSSR Most states of the Former USSR. Start: Last Sunday in March
End: Last Sunday in October
st_Iraq Iraq Start: April 1
End: October 1
st_Israel Israel (an approximation) (Estimate, Israel decides the dates every year)
Start: First Friday in April
End: First Friday in September

st_Lebanon

st_Kirgizstan

Lebanon, Kirgizstan Start: Last Sunday in March
End: Last Sunday in October
st_Palestine Palestine (an approximation) Start: First Friday on or after 15 April
End: First Friday on or after 15 October
st_Syria Syria Start: April 1
End: October 1
st_Iran Iran Start: the first day of Farvardin
End: the first day of Mehr
Australasia st_Australia Australia - South Australia, Victoria,
Australian Capital Territory, New South Wales,
Lord Howe Island
Start: Last Sunday in October
End: Last Sunday in March
st_Tasmania Australia - Tasmania Start: First Sunday in October
End: Last Sunday in March
st_NewZealand
st_Chatham
New Zealand, Chatham Start: First Sunday in October
End: Third Sunday in March
st_Tonga Tonga Start: First Sunday in November
End: Last Sunday in January
Europe st_EU European Union
UK
Start: Last Sunday in March at 1 am UTC
End: Last Sunday in October at 1 am UTC
st_Russia Russia Start: Last Sunday in March at 2 am local time
End: Last Sunday in October at 2 am local time
North America st_USA
st_Canada
st_Mexico
st_Bahamas
United States, Canada, Mexico
St. Johns, Bahamas, Turks and Caicos
Start: Second Sunday in March
End: First Sunday in November

(Post 2007 - no longer implemented)
Start: First Sunday in April
End: Last Sunday in October
st_Cuba Cuba Start: April 1
End: Last Sunday in October
st_Greenland Greenland Same as EU
South America st_Brazil Brazil (rules vary from year to year - and
equatorial Brazil does not observe DST)
Start: First Sunday in November
End: Third Sunday in February
st_Chile Chile
Start: Second Saturday of October
End: Second Saturday of March
st_Falklands Falklands Start: First Sunday on or after 8 September
End: First Sunday on or after 6 April
st_Paraquay Paraguay Start: First Sunday in September
End: First Sunday in April

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