One country has more time zones than any other country in the world, and we'll give you a hint - it's not the U.S., and it's ...

The current March to November system that the U.S. follows began in 2007, but the concept of "saving daylight" is much older.

As the calendar turns to November, so, too, will our clocks turn back to standard time as daylight saving (not savings) time ...

Why does the whole world set its clocks by a hill in London? The answer is more important than maps and politics. It all ...

The sunsets are noticeably earlier, just past 6 p.m. in Massachusetts, and the sunrise is almost at 7 a.m. As we slip further and further into the darkest time of the year, you might be wondering when ...

For a week every October, people organizing international catch-ups and meetings on both sides of the Atlantic may be briefly ...

Keeping daily habits synchronized with natural circadian rhythms can lower cardiometabolic risks and support heart health.

WASHINGTON — Daylight saving time is coming to an end for 2025 in less than two weeks. Clocks will "fall back" one hour at 2 a.m. on Nov. 2, the first Sunday in November, granting most people an extra ...