There are typically 365 days in a year, but in 2024 we get 366. Here's the history behind February's bonus day.

The modern calendar has Roman Catholic roots. As the sun does not adhere exactly to the earthly calendar, leap days are ...

Every four years, an extra day is added to the calendar, But even with leap day, the math doesn't exactly, well, math.

What to know about February and leap year. Why do we have a leap years? Leap years account for the inaccurate measure of time on the 365-day calendar. Technically it takes 365.242190 days for the ...

Every fourth year, those extra quarter-days get added to the calendar to make one full day – February 29. 2 This means every leap year has 366 days! 3 A leap year happens when the year can be ...

February gets a leap year once every four years to keep the calendar in sync with Earth's seasons. Leap years account for the inaccurate measure of time on the 365-day calendar. Technically it ...