Editing the duration of a task

A duration is the span of time between the start date and finish date for a task. A duration is always based on how a day is defined in the working calendar associated with the task plan. A day is defined (by default) as being 8 hours; therefore, a duration of 1 day in a task is 8 hours. A duration can be entered in minutes, hours, days, weeks, or months. However, durations (once entered) are always converted to days. For example, if a duration is entered as 4 hours, it will be be converted to 0.5 days in the task plan. You should try to use the same duration type (i.e. days) for all tasks in the same task plan. Use a question mark (?) to indicate an estimated duration.

To edit the duration of a task