The Calendar and the Diary

Emacs provides the functions of a desk calendar, with a diary of planned or past events. It also has facilities for managing your appointments, and keeping track of how much time you spend working on certain projects.

To enter the calendar, type M-x calendar; this displays a three-month calendar centered on the current month, with point on the current date. With a numeric argument, as in C-u M-x calendar, it prompts you for the month and year to be the center of the three-month calendar. The calendar uses its own buffer, whose major mode is Calendar mode.

Mouse-2 in the calendar brings up a menu of operations on a particular date; C-Mouse-3 brings up a menu of commonly used calendar features that are independent of any particular date. To exit the calendar, type q. See Customizing the Calendar and Diary, for customization information about the calendar and diary.

• Calendar Motion: Moving through the calendar; selecting a date.
• Scroll Calendar: Bringing earlier or later months onto the screen.
• Counting Days: How many days are there between two dates?
• General Calendar: Exiting or recomputing the calendar.
• LaTeX Calendar: Print a calendar using LaTeX.
• Holidays: Displaying dates of holidays.
• Sunrise/Sunset: Displaying local times of sunrise and sunset.
• Lunar Phases: Displaying phases of the moon.
• Other Calendars: Converting dates to other calendar systems.
• Diary: Displaying events from your diary.
• Appointments: Reminders when it's time to do something.
• Daylight Savings: How to specify when daylight savings time is active.
• Time Intervals: Keeping track of time intervals.

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