Julian Calendar 2024 Leap Year 2024. 2024 calendar with modified julian date (mjd) and gps week:day numbers return to leapsecond.com home page. The gregorian calendar, as we know today, begins on.
The julian calendar was 0.0078 days (11 minutes and 14 seconds) longer than the tropical year, so errors in timekeeping still gradually accumulated, according to nasa. 2024 is a leap year!