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1. www.php.net › manual › enPHP: gregoriantojd - Manual

   www.php.net › manual › en

   The valid range for the Gregorian calendar is from November 25, 4714 B.C. to at least December 31, 9999 A.D. Although this function can handle dates all the way back to 4714 B.C., such use may not be meaningful. The Gregorian calendar was not instituted until October 15, 1582 (or October 5, 1582 in the Julian calendar). Some countries did not accept it until much later. For example, Britain ...

   • Juliantojd

     Remember, the current calendar system being used worldwide...

   • Jdtojulian

     jdtojulian (PHP 4, PHP 5, PHP 7, PHP 8) jdtojulian —...

   • Jdtounix

     Convert Julian Day to Unix timestamp jdtounix (PHP 4, PHP 5,...

   • Unixtojd

     Convert Unix timestamp to Julian Day unixtojd (PHP 4, PHP 5,...

   • Jdmonthname

     Returns a string containing a month name. mode tells this...

   • Jewishtojd

     jewishtojd (PHP 4, PHP 5, PHP 7, PHP 8) jewishtojd —...

   • Jdtofrench

     jdtofrench (PHP 4, PHP 5, PHP 7, PHP 8) jdtofrench —...

   • Frenchtojd

     frenchtojd (PHP 4, PHP 5, PHP 7, PHP 8) frenchtojd —...

2. www.w3schools.com › php › func_cal_gregoriantojdPHP gregoriantojd () Function - W3Schools

   www.w3schools.com › php › func_cal_gregoriantojd

   The gregoriantojd () function converts a date from the Gregorian Calendar to a Julian Day Count. Note: Although this function can handle dates back to 4714 B.C., notice that the Gregorian calendar was not instituted until 1582, and some countries did not accept it until much later (Britain converted in 1752, USSR in 1918, and Greece in 1923).

3. www.geeksforgeeks.org › php › php-gregoriantojd-functionPHP | gregoriantojd() Function - GeeksforGeeks

   www.geeksforgeeks.org › php › php-gregoriantojd-function

   Jul 11, 2025 · Your All-in-One Learning Portal: GeeksforGeeks is a comprehensive educational platform that empowers learners across domains-spanning computer science and programming, school education, upskilling, commerce, software tools, competitive exams, and more.

4. fr.w3docs.com › learn-php › gregoriantojdgregoriantojd () | W3Docs

   fr.w3docs.com › learn-php › gregoriantojd

   Note : La fonction gregoriantojd () est dépréciée dans PHP 8.2 et prévue pour être supprimée dans une future version de PHP. Pour la gestion moderne des dates, utilisez la classe DateTime ou IntlGregorianCalendar. Consultez la section Alternative PHP moderne ci-dessous.

5. www.phpmanual.jasminecorp.net › functionPHP: gregoriantojd function - Converts a Gregorian date to ...

   www.phpmanual.jasminecorp.net › function

   (PHP 4, PHP 5) GregorianToJD — Converts a Gregorian date to Julian Day Count

6. www.yaldex.com › php_manual › functionGregorianToJD - yaldex.com

   www.yaldex.com › php_manual › function

   int gregoriantojd ( int month, int day, int year ) Valid Range for Gregorian Calendar 4714 B.C. to 9999 A.D. Although this function can handle dates all the way back to 4714 B.C., such use may not be meaningful. The Gregorian calendar was not instituted until October 15, 1582 (or October 5, 1582 in the Julian calendar).

7. www.w3resource.com › GregorianToJDPHP: gregoriantojd () function - w3resource

   www.w3resource.com › GregorianToJD

   Oct 8, 2024 · The gregorianToJD() function converts a Gregorian date to Julian day count.