While working on a tasks, it's possible that you can finish it earlier than due date or realise that you need more time. In this case it's better to change task due date to keep information about tasks up-to-the-minute.
How to reschedule task due date:
1. Find the task in "My tasks" list and click on it to access task details page
2. Use the calendar button under the task name to choose new due date.
Next article - How to use private tasks