The clocks fall back twice this autumn on the two sides of the Atlantic, one week apart. The United Kingdom and every European Union country end summer time on Sunday, October 25, 2026. The United States and most of Canada end daylight saving time on

Mexico uses four time zones, and since October 30, 2022, most of the country keeps the same time all year. Mexico City, Guadalajara and Monterrey stay at UTC−6 in January and in July. Cancún stays at UTC−5, Los Cabos and Mazatlán at UTC−7. The only

Brazil covers 8,514,877 square kilometers, the fifth largest country on Earth, and its territory stretches 4,319 kilometers from its Atlantic tip near João Pessoa to the Peruvian border, a span of roughly 39 degrees of longitude. Despite that scale, Brazil runs on only four time

The premise behind that headline needs a small correction before the story even starts. Japan did try daylight saving time, for four full years, complete with clocks moving forward and back on a fixed schedule. What Japan never did was choose it. The distinction between

A stardate is the fictional timekeeping system Star Trek's Starfleet uses instead of the Gregorian calendar, heard from the show's very first broadcast episode in September 1966, "Captain's log, star date 1513.1," and reworked at least three separate times since, in ways the franchise's own

By the year 1500, the clock at Wells Cathedral in England was already striking the quarter-hours for the whole town to hear. What it could not do was show a minute. There was no minute hand on any clock anywhere, because no clock mechanism was

Nothing about the universe requires a clock's hands to sweep the way they do. There's no physical law dictating that "forward" in time should move to the right at the top of a dial. The direction is a historical accident, frozen into every watch, wall

On October 23, 1998, at a ceremony called the Junior Summit '98, a Swiss watch executive and the then-director of the MIT Media Lab stood together and announced that time zones were unnecessary. The proposal was called Swatch Internet Time. It replaced hours, minutes, and