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

NAME

     cal -- displays a calendar

SYNOPSIS

     cal [-3hjry] [-A after] [-B before] [-d day-of-week] [-R reform-spec] [[month] year]

DESCRIPTION

     cal displays a simple calendar.  If arguments are not specified, the current month is displayed.  The options are as follows:

     -3      Same as ``-A 1 -B 1''.

     -A after
	     Display after months after the specified month.

     -B before
	     Display before months before the specified month.

     -d day-of-week
	     Specifies the day of the week on which the calendar should start.	Valid values are 0 through 6, presenting Sunday through Saturday,
	     inclusively.  The default output starts on Sundays.

     -h      Highlight the current day, if present in the displayed calendar.  If output is to a terminal, then the appropriate terminal sequences
	     are used, otherwise overstriking is used.	If more than one -h is used and output is to a terminal, the current date will be high-
	     lighted in inverse video instead of bold.

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

     -R reform-spec
	     Selects an alternate Gregorian reform point from the default of September 3rd, 1752.  The reform-spec can be selected by one of the
	     built-in names (see NOTES for a list) or by a date of the form YYYY/MM/DD.  The date and month may be omitted, provided that what is
	     specified uniquely selects a given built-in reform point.	If an exact date is specified, then that date is taken to be the first
	     missing date of the Gregorian Reform to be applied.

     -r      Display the month in which the Gregorian Reform adjustment was applied, if no other month or year information is given.  If used in
	     conjunction with -y, then the entire year is displayed.

     -y      Display a calendar for the current year.

     If no parameters are specified, the current month's calendar is displayed.  A single parameter specifies the year and optionally the month in
     ISO format: ``cal 2007-12'' Two parameters denote the month (1 - 12) and year.  Note that the century must be included in the year.

     A year starts on Jan 1.

NOTES

     In the USA and Great Britain the Gregorian Reformation occurred in 1752.  By this time, most countries had recognized the reformation
     (although a few did not recognize it until the 1900's.)  Eleven days following September 2, 1752 were eliminated by the reformation, so the
     calendar for that month is a bit unusual.

     In view of the chaotic way the Gregorian calendar was adopted throughout the world in the years between 1582 and 1928 make sure to take into
     account the date of the Gregorian Reformation in your region if you are checking a calendar for a very old date.

     cal has a decent built-in list of Gregorian Reform dates and the names of the countries where the reform was adopted:

	     Italy	     Oct.  5, 1582   Denmark	     Feb. 19, 1700
	     Spain	     Oct.  5, 1582   Great Britain   Sep.  3, 1752
	     Portugal	     Oct.  5, 1582   Sweden	     Feb. 18, 1753
	     Poland	     Oct.  5, 1582   Finland	     Feb. 18, 1753
	     France	     Dec. 12, 1582   Japan	     Dec. 20, 1872
	     Luxembourg      Dec. 22, 1582   China	     Nov.  7, 1911
	     Netherlands     Dec. 22, 1582   Bulgaria	     Apr.  1, 1916
	     Bavaria	     Oct.  6, 1583   U.S.S.R.	     Feb.  1, 1918
	     Austria	     Jan.  7, 1584   Serbia	     Jan. 19, 1919
	     Switzerland     Jan. 12, 1584   Romania	     Jan. 19, 1919
	     Hungary	     Oct. 22, 1587   Greece	     Mar. 10, 1924
	     Germany	     Feb. 19, 1700   Turkey	     Dec. 19, 1925
	     Norway	     Feb. 19, 1700   Egypt	     Sep. 18, 1928

     The country known as Great Britain can also be referred to as England since that has less letters and no spaces in it.  This is meant only as
     a measure of expediency, not as a possible slight to anyone involved.

HISTORY

     A cal command appeared in Version 6 AT&T UNIX.

BSD
								 December 21, 2007							       BSD