Nearly every four years, the Gregorian calendar — which is used in the majority of countries around the world — gets an extra day: February 29. For some people, leap day means frog jokes and ...

It takes 365 days, 5 hours, 48 minutes and 45 seconds for Earth to orbit the sun. Cue Leap Years. Next week sees an extra day in the 2024 calendar—a leap day. You’ll remember the last leap year. It ...