Timekeeping

Daylight Saving Time Cultural Practices Time Zones Seasonal Changes Daylight Savings Time Calendars Cultural Changes Leap Seconds Clocks Calendar Systems

Massachusetts Senate Leader Backs Year-Round Daylight Time as Bill Heads to Rules Committee

The plan proceeds only with neighboring-state participation plus federal clearance.

Clocks Spring Forward at 2 A.M. Sunday as Daylight Saving Time Begins

U.S. Springs Forward Sunday as British Columbia Makes Daylight Saving Time Permanent

Most of U.S. Springs Forward March 8 at 2 A.M. as Daylight Saving Time Begins

Daylight Saving Time Starts March 8, 2026, With Clocks Moving Ahead One Hour

Why January 1 Is New Year’s Day: Romans, Reforms and Janus

U.S. Clocks Fall Back Sunday as Push to End Time Changes Stalls in Senate

Netherlands Sets Clocks Back One Hour as Wintertime Begins

Clocks Fall Back: UK Switches to GMT Oct. 26 as Most of U.S. Returns to Standard Time Nov. 2

Clocks Fall Back in UK on Oct. 26 and in US on Nov. 2 as Daylight Saving Time Ends

Daylight Saving Time Ends Nov. 2: U.S. Clocks Fall Back One Hour

Daylight Saving Time Ends Nov. 2 in North America as Clocks Turn Back One Hour

Clocks Fall Back Early This Year as Daylight Saving Time Ends Nov. 2

Daylight Saving Time Ends Nov. 2 as Congress Considers Permanent Standard Time

Daylight Saving Time Change Renews Health Concerns and Calls for Reform

EU Clocks Spring Forward as Daylight Saving Time Continues Despite Calls for Reform

Debate Over Permanent Daylight Saving Time Gains Momentum in U.S.

Debate Over Daylight Saving Time Intensifies as Health Impacts Highlighted

Daylight Saving Time Begins March 9, Bringing Longer Evenings

Key Changes for March 2025: Travel, Pensions, and Seasonal Adjustments