Data Type Yes/No (Yes/No field: A type of field with content set to either Yes or No; also known as a Boolean field or a True/False field. For example, the Recurring field indicates whether the task is a recurring task.)
Entry Type Entered (entered field: A field in which you may type or edit information. This is in contrast with a calculated field, in which Project calculates and enters information.)
Description The Ignore Resource Calendar field indicates whether the scheduling of the task (task: An activity that has a beginning and an end. Project plans are made up of tasks.) takes into account the calendars of the resources (resources: The people, equipment, and material that are used to complete tasks in a project.) assigned to the task. By default, this field contains No, indicating that resource calendars (resource calendar: A calendar that specifies working and nonworking time for an individual resource. A resource calendar differs from a base calendar, which specifies working and nonworking time for more than one resource.) are considered in the scheduling of this task. This field can be modified when you apply a task calendar (task calendar: The base calendar that you can apply to individual tasks to control their scheduling, usually independent of the project calendar or any assigned resources' calendars. By default, all tasks use the project calendar.) to the task. You can then select Yes, indicating that only the task calendar is considered in the scheduling of this task.
Best Uses Add the Ignore Resource Calendar field to any task view (task view: A view that displays task information. Task views include three task forms; examples include Calendar, Detail Gantt, Gantt Chart, Milestone Rollup, PA_PERT Entry Sheet, Task Entry, Relationship Diagram, Task Sheet, and Task Usage.) when you want to view or change whether tasks ignore the resource calendar in favor of the task calendar. You might want to ignore resource calendars if you want the assigned resource to work during what would normally be nonworking time (nonworking time: Hours or days designated in a resource or project calendar when Project should not schedule tasks because work is not done. Nonworking time can include lunch breaks, weekends, and holidays, for example.) just for this specific task.
Example You have a "Set up trade show booth" task to which you have assigned two resources. The normal working times (working time: Hours designated in a resource or project calendar during which work can occur.) for the resources are 8:00 A.M. to 5:00 P.M., but they need to set up the booth from 4:00 A.M. until 9:00 P.M. You create and assign a task calendar for the task. Then you add the Ignore Resource Calendar field to the Task Sheet view and set the field to Yes for this task.
Remarks The Ignore Resource Calendar field can also be set in the Task Information dialog box.