Task calendars make it possible to schedule tasks during nonworking time, as defined by the project calendar or resource calendar. For example, you can set up a task calendar if you have a task that needs to be worked on overnight or through the weekend.
You create a task calendar in the Working Time dialog box as a new base calendar. You then apply the base calendar to a task by using the Advanced tab in the Task Information dialog box.
If you have applied a task calendar to a task that already has assigned resources, by default, the task is scheduled for the working times of resource calendars. If you want to schedule the task by using only the task calendar, select the Ignore Resource Calendars check box on the Advanced tab in the Task Information dialog box.

See also

Base calendars

CreateBaseCalendar

Creating a new calendar

Defining working time