jewishtojd

(PHP 4, PHP 5, PHP 7)

jewishtojdConverts a date in the Jewish Calendar to Julian Day Count

Description

int jewishtojd ( int $month , int $day , int $year )

Although this function can handle dates all the way back to the year 1 (3761 B.C.), such use may not be meaningful. The Jewish calendar has been in use for several thousand years, but in the early days there was no formula to determine the start of a month. A new month was started when the new moon was first observed.

Parameters

month

The month as a number from 1 to 13, where 1 means Tishri, 13 means Elul, and 6 and 7 mean Adar in regular years, but Adar I and Adar II, respectively, in leap years.

day

The day as a number from 1 to 30. If the month has only 29 days, the first day of the following month is assumed.

year

The year as a number between 1 and 9999

Return Values

The julian day for the given jewish date as an integer.

See Also

  • jdtojewish() - Converts a Julian day count to a Jewish calendar date
  • cal_to_jd() - Converts from a supported calendar to Julian Day Count

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