Start Julian dating system

Julian dating system

Input Time Zone: UT ------------------------------------------------------- A.

Without an astronomical or historical context, a "Julian date" given as "40" most likely means the fortieth day of a given Gregorian year, namely February 9.

meaning 2,451,919 elapsed days since the beginning of the Julian cycle.

The ".3423000001348555" represented the time of day (" EST").

It has been used by historians since its introduction in 1583 to convert between different calendars.

The Julian calendar year 2017 is year 6730 of the current Julian Period. The term Julian date may also refer, outside of astronomy, to the day-of-year number (more properly, the ordinal date) in the Gregorian calendar, especially in computer programming, the military and the food industry, or it may refer to dates in the Julian calendar.

It is not certain whether the Julian date or day number system was named after Joseph Scaliger's father, Julius Caesar Scaliger, or after the Julian calendar. 2) Commonly in computer programming, Julian date has been corrupted to mean the number of elapsed days since the beginning of a particular year.

For dates in the Julian calendar, see Julian calendar. For the comic book character Julian Gregory Day, see Calendar Man.

In the first year of the Metonic cycle, the New Moon falls on January 1.