Project calendar
A project calendar specifies the working and non-working days and times for activities. Project calendars play an important role in planning tasks for the coming month, quarter, and year.
You can specify which project calendar will be used for your project. All the WBS items of a project will be planned only during the working hours specified in this calendar. Dependency time intervals will also take the working hours into account.
The effort required for a WBS item is also specified within these working hours.
• An effort of 1 day: the time between the general start time and general end time.
• An effort of 1 week: the general working days defined in the calendar, including the general deviating hours.
Example
The general working hours for all employees in an organization is 8 hours per day (09:00 to 17:00) and 5 days per week (Monday to Friday). The specified deviating working hours are every Friday; the office is open for 4 hours in the morning (09:00 to 13:00).
• If the Effort for a WBS item is estimated as 1 week, the WBS item will end after 36 hours, based on the general working hours and deviating working hours specified in the project calendar.
• If the Effort for a WBS items is estimated as 5 days and starts at 09:00 on Monday, it will be considered as 5 times the general hours, so 40 hours. The end date and time for the item is 13:00 on the subsequent Monday (assumed that the calendar does not have a holiday in that specific week).
 | For more information on configuring calendars and specifying deviating working hours, see Calendars. |