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.

We'll have an extra day on the calendar this February, but don't get used to it. Here's when the next leap year is, and when ...

The original Roman calendar divided the year from March to December into 10 months of either 29 or 31 days, based on lunar ...

Adding a leap day every four years would make the calendar longer by more than 44 minutes, according to the National Air & Space Museum. Later, on a calendar yet to come (we’ll get to it), it ...

A lot of annoying little hacks are needed to keep our integer-based calendar in sync with a floating-point universe, and the big one, leap day, passed us by this week. Aside from the ignominy of a ...

Amber Love Bond is a Miami-based food + beverage and travel writer. Leap Day is nearly here and to celebrate the extra calendar day several of Miami’s restaurants and bars have created special ...

The emperor Caesar adopted a 365-day calendar and added 10 days to it, including a leap day in February every four years, writes Calendar.com. Eventually, the calendar we all know was adopted by ...

If January felt like endless, February may be refreshing since it's only 28 days long: Thank the Romans for that oddity. Prior to the Gregorian and even Julian calendars, Roman King Numa Pompilius ...