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To reflect the general working days and hours of your project, you can specify them on the project calendar (project calendar: The base calendar used by a project.), as well as regular nonworking times (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.) (such as weekends and evenings) and special days off (such as holidays).

1. On the Tools menu, click Change Working Time.
2. In the For box, click the project calendar.

   The project calendar for the current project is followed by "(Project Calendar)."

Note  If you are running Microsoft Office Project Professional 2003 with Project Server (Project Server: A Project companion product that enables collaborative planning and status reporting among workgroup members, project managers, and other stakeholders by working with and exchanging project information on a Web site.), you cannot directly edit the project calendar. In this case the project calendar is defined by the enterprise global template (enterprise global template: A collection of default settings, such as views, tables, and fields, that are used by all projects across the organization. These settings exist within a special project in Project Server.). Only someone with administrative privileges (privileges: These specify the items in a project that a user can either see or modify. For example, only someone with administrative privileges can modify outline codes to be used by all project managers within an organization.) (for example, your Project Server administrator) can check out and change items in the enterprise global template.

3. To change one day of the week for the entire calendar (for example, to have Fridays end at 4:00 P.M.), click the abbreviation for that day at the top of the calendar.

   To change all the working days (for example, to have the working day begin at 9:00 A.M.), click the abbreviation at the top of the first day, and then hold down SHIFT and click the abbreviation at the top of the last day.

4. Do one of the following:
   • To set the selected day(s) as nonworking time, click Nonworking time.
   • To set the selected day(s) as working time, click Nondefault working time.
   • To restore the selected day(s) to their original working or nonworking status as specified in the project calendar, click Use default. For example, if a selected Saturday had originally been a nonworking day in the project calendar and it was later changed to a working day, clicking Use default causes Project to restore it back to a nonworking day.
5. For any selected working day, you can also specify start and end times (if you don't, new nondefault working days get the same start and end times as regular work days in the project calendar). Enter the start time you want in the From box, and the end time in the To box. To allow for a break during the workday (such as rest and meal breaks), enter additional From and To values. The project calendar, for example, has default working times of 8:00 A.M. to noon, a lunch break from noon to 1:00 P.M., then a second work shift from 1:00 P.M. to 5:00 P.M.

Notes

• The Project Working Times side pane (side pane: A pane displayed on the left side of the Project and Project Web Access interfaces. In Project, the side pane contains Project Guide information; in Project Web Access, the side pane contains links.) provides an easy way to set the project's working times. On the Project Guide toolbar, click Tasks. Click Define general working times, and then follow the instructions that appear in the side pane.
• When setting up a shift that spans midnight, pay close attention to the working hours per day, and not just to the shift hours. For example, to set up a shift that runs from 10:00 P.M. to 6:00 A.M. weekdays, enter the following nondefault working times:
  • Mondays 10:00 PM to 12:00 AM.
  • Tuesdays through Fridays 12:00 AM to 6:00 AM and 10:00 PM to 12:00 AM.
  • Saturdays 12:00 AM to 6:00 AM.

  Working times that span midnight are difficult to visualize in the Change Working Times dialog box, but are well illustrated in the Project Working Times side pane.