There are several ways in which you can change the start and end dates of a project task.
To edit the Start or End date of a task in the Tasks pane, do one of the following:
To edit the Start or End date of a task in the Schedule pane, do one of the following:
Concept Information
Project Task Gantt (Task Manager)
About Task Dependency Relationships
Related Tasks
Adding a Task Dependency Relationship
Deleting a Task Dependency Relationship
Editing a Task Dependency Relationship
Assigning Resources or Roles to a Project Task
Creating Resource Demands from Project Task Gantt
Associating Project Tasks with Milestones
Reference Materials