Why are we still changing our clocks for daylight saving time?

Why America Still Changes Clocks for Daylight Saving Time

As the northern hemisphere moves into its darker months, daylight saving time is coming to a close. This long-standing practice means most Americans will turn their clocks back one hour this Sunday night.

Who Changes Their Clocks

Every U.S. state except for Hawaii and Arizona continues to observe the time shift. Most people set their clocks back before bed on Saturday, and at 2 a.m. on Sunday, the time automatically reverts to 1 a.m.

The Shortening Days

Since the Summer Solstice, daylight hours have been decreasing steadily. According to the National Oceanic and Atmospheric Administration, the sun will set in San Diego as early as 4:56 p.m. on November 2, and rise at 6:07 a.m.

Approaching the Darkest Days

By Thanksgiving Day, November 27, sunset in San Diego will occur around 4:43 p.m.—perfect timing for a post-dinner nap after a heavy meal. The daylight will continue to shorten until December 21, the Winter Solstice.

“The Winter Solstice marks the shortest day and the longest night of the year,” according to NOAA.

California’s Connection to the Tradition

While many Californians question the need to keep changing clocks, ending the practice requires both federal and state-level action, leaving the tradition in place for now.

Author’s Summary

The U.S. still adjusts clocks twice yearly due to federal law, with California among the states awaiting reform despite growing public fatigue with the tradition.

NBC 7 San Diego — 2025-11-01