Today, my life in the US had 25 hours in a day because of Daylight Saving Time (Summer Time). According to the article below, the system has continued since 1966 in the US.
Refer to: http://webexhibits.org/daylightsaving/b.html "Since 1966, most of the United States has observed Daylight Saving Time from at 2:00 a.m. on the first Sunday of April to 2:00 a.m. on the last Sunday of October. "
Also, from the beginning of 2007, most of the US plans to extend the applied period. In the European Union, Daylight Saving Time is already introduced.
"Beginning in 2007, most of the U.S. will begin Daylight Saving Time at 2:00 a.m. on the second Sunday in March and revert to standard time on the first Sunday in November. In the U.S., each time zone switches at a different time."
On the other hand, Japan doesn't apply this though there has been a lot of discussion about this in Japan. In summary, the countries that have fewer hours of sunlight can advance by Summer Time, and also the countries which are close to the US can get advantage on business. In the sense of the merit, the pros and cons of the issue are controversial in Japan.
Refer to: http://www.gene.ne.jp/~lagoon/st/index.html http://www.eccj.or.jp/SummerTime/info/index.html
Anyway, I enjoyed the moment of the change from Summer Time to non-Summer Time because it was 9:30 though I got up at 10:30 today.:-) More importantly, I felt that the Sun goes around the earth without thinking of people on the earth. I felt the nature doesn't change. People dance on the earth. This kind of intuition is what I want to treasure.