夏令时
乔雪颜
What is Daylight Saving Time?什么是日光节约时制（夏令时）？Daylight Saving Time is a way to make better use of the daylight. The idea is to advance1the clock by one hour so that people will get up earlier and go to sleep earlier with shorter lighting time. Daylight Saving Time is often abbreviated2DST.夏令时是一种更好地利用日光的方法。这个想法是把钟表调快一个小时，这样人们可以早起早睡，减少照明时间。夏令时通常缩写为DST。
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