daylight saving time
夏令时
日常·讨论时间调整
英文释义
the practice of setting the clock ahead by one hour during the warmer months of the year to extend evening daylight
例句
Don't forget to set your clock forward an hour for daylight saving time tonight.
典故来源
由本杰明·富兰克林在1784年提出,旨在利用夏季更长的日照时间节约能源,20世纪初开始被广泛采用。