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Formula for converting to julian dating

The changeover to the Gregorian calendar system occurred as described above only in Roman Catholic countries.However, adoption of the Gregorian calendar in the rest of the world progressed slowly. Seidelmann, University Science Books, 2012); the "Calendars" chapter by L. Doggett, which appeared in the 1992 edition, can also be helpful.

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For example, the Julian date for 1/1/1960 would be 601. Excel has no built-in function to convert a standard date to Julian date, but the figure illustrates how you can use the following formula to accomplish the task.The month and date can be any positive or negative number.For example, this formula would return the date serial number for December 1, 2013: In the Julian date formula in this example, you use a zero as the day argument.Thus, the day of the week can be obtained from the remainder of the division of the Julian date by 7.Calendar dates — year, month, and day — are more problematic.When you use 0 as the day argument, you tell Excel that you want the day before the first day of the given month.

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The DATE function allows you to build a date on the fly using three arguments: the year, the month, and the day.

The year can be any whole number from 1900 to 9999.

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.

In doing so, this implementation uses the convention that the year prior to year 1 is year 0.