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  • 夏時間 Daylight Saving Time
    • アメリカ：　 3月第2日曜日 午前2時 〜 11月の第1日曜日 午前2時

http://www.energy.ca.gov/daylightsaving.html


Year　　From To
1997 April 6 October 26
1998 April 5 October 25
1999 April 4 October 31
2000 April 2 October 29
2001 April 1 October 28
2002 April 7 October 27
2003 April 6 October 26
2004 April 4 October 31
2005 April 3 October 30
2006 April 2 October 29
Rule change
2007 March 11 November 4
2008 March 9 November 2
2009 March 8 November 1
2010 March 14 November 7

    • ヨーロッパ：　3月最終日曜日 午前1時 〜 10月最終日曜日 午前1時

http://www.timeanddate.com/worldclock/clockchange.html?n=136


Year　　From To
1997 March 30 October 26
1998 March 29 October 25
1999 March 28 October 31
2000 March 26 October 29
2001 March 25 October 28
2002 March 31 October 27
2003 March 30 October 26
2004 March 28 October 31
2005 March 27 October 30
2006 March 26 October 29
2007 March 25 October 28
2008 March 30 October 26
2009 March 29 October 25
2010 March 28 October 31