A calendar is a list of dates which define if and when a job stream runs.

A calendar can also be designated for use as a non-working days calendar in a job stream. A non-working days calendar is a calendar that is assigned to a job stream to represent the days when the job stream and its jobs do not run. It can also be used to designate Saturdays or Sundays, or both, as workdays. By convention many users define a non-working days calendar named holidays, where habitually Saturday and Sunday are specified as non-working days.

For information about how to define calendars, see Calendar definition.