Across much of the U.S., the clocks change twice each year. In spring, they move forward an hour to mark the start of daylight saving time, and in fall, they shift back an hour as it ends.

This gives early risers an extra hour of sleep before their alarms, but it also means the sun will set earlier — often before many workers finish their day.

Here’s what to know about the end of daylight saving time 2025:

What is daylight saving time?

Dig deeper:

Daylight saving time is defined as a period between spring and fall when clocks in most parts of the country are set one hour ahead of standard time. According to federal law, it always starts on the second Sunday in March and ends on the first Sunday in November.

The practice of falling back in the U.S. started in 1918 during World War I a

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