Using Task Calendars
CS Project allows the user to assign a different calendar to individual tasks. This is useful if a particular task is required to work to a different working time than the regular activities. For instance, a task may need to work weekends when the Project Calendar is set as 5 days Mon to Fri.
To assign a Task Calendar, go to the Task Toolbar, click on the task you wish to edit, and then click the ‘Edit Task’ icon, or press Shift+F2.
On the Details Tab, select the required Calendar for the Task.
Please note: All task durations are calculated in minutes but displayed in hours or days. So when changing tasks to alternative calendars, it is good practice to maintain continuity with the working hours per day, otherwise you may end up with fractions of a day.