Convert a Jewish date to a Julian Day Count:
The jewishtojd() function converts a date from the Jewish Calendar to a Julian Day Count.
Note: Although this function can handle dates back to year 1 (3761 B.C.), notice that in the beginning there was no formula to determine the start of a month. A new month was started when the new moon was first observed.
Tip: Look at the jdtojewish() function to convert a Julian Day Count to a Jewish date.
|month||Required. Specifies the month as a number from 1 to 13|
|day||Required. Specifies the day as a number from 1 to 30|
|year||Required. Specifies the year as a number between 1 and 9999|
|Return Value:||Returns a Julian Day number|
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