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5 Defining Calendars

By Paul E. Harris
From Project Planning and Scheduling Using Primavera Version 4.1: For Engineering & Construction and Maintenance & Turnaround

Overview

The finish date (and time) of an activity is calculated from thestart date (and time) plus the duration over the calendar associated with the activity. Therefore,a five-day duration activity that starts at the start of the workday on a Wednesday, and isassociated with a five-day workweek calendar (with Saturday and Sunday as non-work days) willfinish at the end of the workday on the following Tuesday.

Primavera Version 4.1 has three categories for calendars:

  • Global These calendars are available to all Projects andResources.

  • Project These calendars are only available to the projectsthey are created for and may only be created for a project when that project is open.

  • Resource A Resource calendar may be assigned to one ormore Resources, which in turn may be assigned to an activity in any project. A Resource will bescheduled according to a Resource Calendar when the Activity Typeis set to Resource Dependent, otherwise the activity isscheduled according to the Activity Calendar.

You may create a new or edit an existing Calendar to reflect your project requirements, suchas adding holidays or additional workdays or adjusting work times. For example, some activities mayhave a 5-day per week calendar and some may have a 7-day per week calendar.

This chapter will cover the following topics:

Topic

Menu Command

  • Assigning the Default Activity / Project Calendar.

This calendar is assigned to new activities. From the ProjectsWorkspace, click on the Defaults tab in the Details form.

  • Creating, Copying, Editing or Deleting Calendars

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