Why the US Kept Daylight Saving Time美国为何保留夏令时

On the second Sunday of March， at 2 a.m.， clocks in most of the United States and many other countries move forward one hour and stay there for nearly eight months in what is called Daylight Saving Time. On the first Sunday of November， at 2 a.m.， clocks fall back an hour to standard time.

每年3月第二个周日的凌晨两点，美国大部分地区和其他许多国家的时钟都会拨快一个小时，然后维持差不多8个月，实行所谓的夏令时（也叫日光节约时制）。（剩余5311字）