daylight saving time noun
daylight saving time
noun
Learner's definition of DAYLIGHT SAVING TIME
[noncount] US
: a period of the year between spring and fall when clocks in the U.S. are set one hour ahead of standard time美国夏令时间(春、秋季之间,美国时钟比标准时间拨快一小时) — called also daylight savings time
— compare british summer time