definition
Any system by which time is divided into days, weeks, months, and years.
example
The three principal calendars are the Gregorian, Jewish, and Islamic calendars.
definition
A means to determine the date consisting of a document containing dates and other temporal information.
example
Write his birthday on the calendar hanging on the wall.
definition
A list of planned events.
example
The club has a busy calendar this year.
definition
An orderly list or enumeration of persons, things, or events; a schedule.
example
a calendar of bills presented in a legislative assemblly; a calendar of causes arranged for trial in court
definition
An appointment book (US), appointment diary (UK)