RE: [PHP-WIN] Help with Calendar Functions!!

From: Date: Fri, 10 Nov 2000 17:23:44 +0000
Subject: RE: [PHP-WIN] Help with Calendar Functions!!
Groups: php.windows 
Request: Send a blank email to php-windows+get-3784@lists.php.net to get a copy of this message
I figured it was a BC date, but why that date? What is the coorelation between -4713 and 2000? Would 2001 be -4712? What is the algorithm to convert it or how do I use -4713, or whatever BC date, to get the current year? What is funny is that how could it come back with a result of 10/28 (month/day) for Julian Day of 301 when it doesn't know the year? (Leap year can throw that off) I tried your example but that just gave me a result of "2451859", but no matter what I do I can't get that to convert to the current year(2000). Again, I don't know the correct algorithm, I get either 1999 or 2004 depending if I use 365 or 365.25. Can you get a Julian day from a date using these functions? Example, For Date: 1/1/2000 the Julian Day: 1 For Date: 3/1/200 the Julian Day: 61 etc. ... Again, I really appreciate your help!!! -----Original Message----- From: Zak Greant [mailto:zak@php.net] Sent: Friday, November 10, 2000 10:00 AM To: Joey Garcia Cc: php-windows@lists.php.net Subject: RE: [PHP-WIN] Help with Calendar Functions!! At 09:48 AM 11/10/00 -0700, Joey Garcia wrote: >Thanks for the insight to the Octal issue. > >What do I do with the -4713 number? It indicates that the year is BC... or is this not your question... >How do I get the Julian Day from 11/9/2000 using these functions? Does it >not work with windows? It works with windows. list ($m, $d, $y) = explode ('/', date ('m/d/Y')); $jd = gregoriantojd ($m, $d, $y); --zak

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