It is a system that advances the clock by one hour to extend the daytime during the long period of summer days in the United States and other countries.
In the United States, Canada and Mexico, daylight saving time is from the second Sunday in March to the first Sunday in November in Japan.
Summer time is from the last Sunday of March to the last Sunday of October in Europe and from the first Sunday of October to the first Sunday of April in Australia.
Japan time:(Summer time 22：30～05：00) (Winter time 23:30～06:00)
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