Nov. 2, 2025, marks the end of Daylight Saving Time for most of the United States. But unlike almost everywhere else, Arizona doesn't observe DST and hasn't done so for about the last 40 years.

Find out exactly when daylight saving time ends, which states observe and which territories don't. Plan for darker evenings and an extra hour of sleep.

We’ve all heard of daylight saving time, and every March, we know to set our clocks forward, while setting them back in November. And we all grumble when we lose an hour of sleep—or wake up in the dark wondering if it’s still the middle of the night—and then rejoice in November when we finally get that precious hour back (even if it suddenly feels like midnight by 4 p.