Page "Calendar" Paragraph 47

A calendar is also a physical device ( often paper ) ( for example, a desktop calendar or a wall calendar ).

In a paper calendar one or two sheets can show a single day, a week, a month, or a year.

If a sheet is for a single day, it easily shows the date and the weekday.

If a sheet is for multiple days it shows a conversion table to convert from weekday to date and back.

With a special pointing device, or by crossing out past days, it may indicate the current date and weekday.

This is the most common usage of the word.