Julian dating system

Julian dates are widely used as time variables within astronomical software.

Typically, a 64-bit floating point (double precision) variable can represent an epoch expressed as a Julian date to about 1 millisecond precision.

They are also useful when viewing Julian date fields in applications outside of JD Edwards World that do not convert Julian to Gregorian.

The Julian (*JUL) date format is CYYDDD, where: C is added to 19 to create the century, i.e. YY is the year within the century, DDD is the day in the year.

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

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.

If you are performing date calculations in World Writer, you may be required to use the Julian date value.

It is assumed that 7-day weeks have formed an uninterrupted sequence since ancient times.

Date fields in JD Edwards World files are stored in the Julian format.

Program X0028 converts these dates into the Gregorian format so they are easily recognized in World software applications.

For example, in this usage, the Julian date for the calendar date of 1998-02-28 would be day 59.

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

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