How would I calculate the duration of days that it takes to do a task that is done in parallel to another task. I.E. if it is a kitchen renovation and it takes one day to do two tasks, "Removal of utensils" and "Removal of appliance". Would I say both tasks duration is 1 day? even tho they can be done in parallel, both in one day. Making it a total of 1 day? or count each task duration as 1 day for a total of 2 days?