gregoriantojd(3) [php man page]

GREGORIANTOJD(3)							 1							  GREGORIANTOJD(3)

gregoriantojd - Converts a Gregorian date to Julian Day Count

SYNOPSIS

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

DESCRIPTION

	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). Some countries did not accept it until much later. For exam-
       ple,  Britain  converted in 1752, The USSR in 1918 and Greece in 1923. Most European countries used the Julian calendar prior to the Grego-
       rian.

PARAMETERS

	      o $month
		- The month as a number from 1 (for January) to 12 (for December)

	      o $day
		- The day as a number from 1 to 31

	      o $year
		- The year as a number between -4714 and 9999

RETURN VALUES

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

EXAMPLES

       Example #1

	      Calendar functions

	      <?php
	      $jd = GregorianToJD(10, 11, 1970);
	      echo "$jd
";
	      $gregorian = JDToGregorian($jd);
	      echo "$gregorian
";
	      ?>

SEE ALSO

       jdtogregorian(3), cal_to_jd(3).

PHP Documentation Group 													  GREGORIANTOJD(3)

CAL(1)							    BSD General Commands Manual 						    CAL(1)

NAME

     cal, ncal -- displays a calendar and the date of easter

SYNOPSIS

     cal [-jy] [[month] year]
     cal [-j] -m month [year]
     ncal [-jJpwy] [-s country_code] [[month] year]
     ncal [-Jeo] [year]

DESCRIPTION

     The cal utility displays a simple calendar in traditional format and ncal offers an alternative layout, more options and the date of easter.
     The new format is a little cramped but it makes a year fit on a 25x80 terminal.  If arguments are not specified, the current month is dis-
     played.

     The options are as follows:

     -J      Display Julian Calendar, if combined with the -e option, display date of easter according to the Julian Calendar.

     -e      Display date of easter (for western churches).

     -j      Display Julian days (days one-based, numbered from January 1).

     -m month
	     Display the specified month.

     -o      Display date of orthodox easter (Greek and Russian Orthodox Churches).

     -p      Print the country codes and switching days from Julian to Gregorian Calendar as they are assumed by ncal.	The country code as deter-
	     mined from the local environment is marked with an asterisk.

     -s country_code
	     Assume the switch from Julian to Gregorian Calendar at the date associated with the country_code.	If not specified, ncal tries to
	     guess the switch date from the local environment or falls back to September 2, 1752.  This was when Great Britain and her colonies
	     switched to the Gregorian Calendar.

     -w      Print the number of the week below each week column.

     -y      Display a calendar for the specified year.

     A single parameter specifies the year (1 - 9999) to be displayed; note the year must be fully specified: ``cal 89'' will not display a calen-
     dar for 1989.  Two parameters denote the month and year; the month is either a number between 1 and 12, or a full or abbreviated name as
     specified by the current locale.  Month and year default to those of the current system clock and time zone (so ``cal -m 8'' will display a
     calendar for the month of August in the current year).

     A year starts on Jan 1.

SEE ALSO

     calendar(3), strftime(3)

HISTORY

     A cal command appeared in Version 5 AT&T UNIX.  The ncal command appeared in FreeBSD 2.2.6.

AUTHORS

     The ncal command and manual were written by Wolfgang Helbig <helbig@FreeBSD.org>.

BUGS

     The assignment of Julian--Gregorian switching dates to country codes is historically naive for many countries.

BSD
								 November 23, 2004							       BSD