The trouble with designing a nice, regular calendar is that each Earth year is 365.2422 days long, leaving extra snippets of time that don't fit nicely into a cycle of 24-hour days.

That Time Feb. 30 Was a Real Date on the Calendar If you were born on a Leap Day and find that aggravating, imagine being born on a day that then ceased to exist entirely.

Time can stand still, or at least look the same from year to year, two calendar reform advocates say. Researchers at The Johns Hopkins University have discovered a way to make time stand still ...

The trouble with designing a nice, regular calendar is that each Earth year is 365.2422 days long, leaving extra snippets of time that don't fit nicely into a cycle of 24-hour days.

At the time Julius took office, the seasons and the calendar were three months out of alignment due to missing intercalations, so Julius added two extra months to the year 46 B.C., extending that ...