How can I change the project calendar after a project is created?

Project managers can change the project calendar from the Edit Project Details page. In the Project Management work area, open the Actions panel tab, and then click the Manage Project Details link to open the Edit Project Details page.

After you change the project calendar and return to the Manage Project Plan page, a banner appears with an option to update the tasks based on the new calendar. Click Update to reschedule project tasks based on the new calendar.