In this software video tutorial you will learn how to use elapsed duration in MS Project 2007. A simple project has been created with a few tasks and the durations have also been entered. Say you have an important task that's essential for the completion of the project. For example, if you are shooting a film, developing the film is an important task. You might know that this task may take 16 hours. If you enter the duration of 16hrs against the task, the start and finish dates will be, for example, 1st Jun and 4th Jun respectively. To remedy this enter 16ehrs. This stands for elapsed hours. Then the start and finish dates will change to 1st and 2nd Jun respectively.