Calendar (disambiguation) explained

A calendar is a catalogue, list or table, most commonly used for a table of days, months, years etc.

Calendar may also refer to:

Calendar (archives), a descriptive inventory or summary of archival documents
Calendar of saints, a traditional Christian method of organizing a liturgical year by associating each day with one or more saints
Calendar (stationery), a physical object consisting of a table of days, months, years etc.
Annual calendar (horology), indicating the date or the day, by number or by name (full or abridged), either by watch hands or rotating disk
Calendar Man, a DC Comics supervillain character

Film and television

Calendar (British TV programme), a news and current affairs programme broadcast on ITV Yorkshire in the United Kingdom
Calendar (American TV program), a weekday morning news and information program shown in the United States on CBS from 1961 to 1963
Calendar (1993 film), a 1993 film directed by Atom Egoyan
Calendar (2009 film), a 2009 Malayalam film directed by Mahesh
Calendar (2017 film) a 2017 Assamese film directed by Homjyoti Talukdar

Calendaring software, software with a calendar and scheduling possibilities
Calendar (Apple), a Mac OS X calendar application made by Apple Inc.
Calendar (Ubuntu), a calendar application integrated into Ubuntu
Calendar (Windows), a calendar application integrated into certain versions of Microsoft Windows
Google Calendar, a web-based calendar service and mobile application
Outlook Calendar on Outlook.com, formerly named Calendar, a consumer web-based calendar service