1 .\" Copyright (c) 1997 Wolfgang Helbig
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33 .Nd displays a calendar and the date of Easter
53 .Op Fl s Ar country_code
66 utility displays a simple calendar in traditional format and
68 offers an alternative layout, more options and the date of Easter.
69 The new format is a little cramped but it makes a year fit
71 If arguments are not specified,
72 the current month is displayed.
74 The options are as follows:
75 .Bl -tag -width indent
77 Turns off highlighting of today.
79 Display Julian Calendar, if combined with the
81 option, display date of Easter according to the Julian Calendar.
83 Display date of Easter (for western churches).
85 Display Julian days (days one-based, numbered from January 1).
91 is specified as a decimal number, it may be followed by the letter
95 to indicate the following or preceding month of that number,
98 Display date of Orthodox Easter (Greek and Russian
101 Print the country codes and switching days from Julian to Gregorian
102 Calendar as they are assumed by
104 The country code as determined from the local environment is marked
106 .It Fl s Ar country_code
107 Assume the switch from Julian to Gregorian Calendar at the date
112 tries to guess the switch date from the local environment or
113 falls back to September 2, 1752.
115 Britain and her colonies switched to the Gregorian Calendar.
117 Print the number of the week below each week column.
119 Display a calendar for the specified year.
121 Switch to backwards compatibility mode (for debugging).
122 .It Fl d Ar yyyy-mm-dd
125 as the current date (for debugging of highlighting).
127 Display the previous, current and next month surrounding today.
131 of months after the current month.
135 of months before the current month.
138 A single parameter specifies the year (1\(en9999) to be displayed;
139 note the year must be fully specified:
143 display a calendar for 1989. Two parameters denote the month and
144 year; the month is either a number between 1 and 12, or a full or
145 abbreviated name as specified by the current locale. Month and
146 year default to those of the current system clock and time zone (so
148 will display a calendar for the month of August in the current
151 A year starts on January 1.
167 command and manual were written by
168 .An Wolfgang Helbig Aq helbig@FreeBSD.org .
170 The assignment of Julian\(enGregorian switching dates to country
171 codes is historically naive for many countries.
173 Not all options are compatible and using them in different orders
174 will give varying results.