cal

Print calendar information. More information: https://keith.github.io/xcode-man-pages/cal.1.html.

• Display a calendar for the current month:

cal

• Display previous, current, and next month:

cal -3

• Display a calendar for a specific month (1-12 or name):

cal -m month

• Display a calendar for the current year:

cal -y

• Display a calendar for a specific year (4 digits):

cal year

• Display a calendar for a specific month and year:

cal month year

• Display date of Easter (Western Christian churches) in a given year:

ncal -e year