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jewishtojd — Converts a Jewish calendar date to a Julian day count.


int jewishtojd(month, day, year);
int month: Month number from the Jewish calendar
int day: Day of month number from the Jewish calendar
int year: Year number from the Jewish calendar


Julian day count; 0 if any parameter is outside the valid range


jewishtojd() converts a Jewish calendar date to a Julian day count. If any parameter is set outside the acceptable ranges, the function returns 0.

The acceptable ranges for the parameters of this function are shown in the following table.

Parameter Acceptable Range of Values
month 1 to 13
day 1 to 30
year 1 to at least10000


PHP Version: 3+, 4+

See also

To convert a Julian day count to a Jewish calendar date:


To convert a Julian day count to another calendar system:

See the other jdto*() functions


Example 80. Display the Julian day count for Rosh Hashanah of 2401

echo jewishtojd (1, 1, 2401);

PHP Functions Essential Reference. Copyright © 2002 by New Riders Publishing (Authors: Zak Greant, Graeme Merrall, Torben Wilson, Brett Michlitsch). This material may be distributed only subject to the terms and conditions set forth in the Open Publication License, v1.0 or later (the latest version is presently available at The authors of this book have elected not to choose any options under the OPL. This online book was obtained from and is designed to provide information about the PHP programming language, focusing on PHP version 4.0.4 for the most part. The information is provided on an as-is basis, and no warranty or fitness is implied. All persons and entities shall have neither liability nor responsibility to any person or entity with respect to any loss or damage arising from the information contained in this book.

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