Templates help you save time and energy, providing you with a predefined structure for your tasks and milestones. Timelines help you keep track of your project's progress by showing info on the sequence of activities, the duration of each activity, and the dependencies between activities, so you can easily see how much work has been completed and how much is still left to do.īuilding a project timeline can be rather difficult and time consuming. A project timeline template is a pre-made model of a timeline that you can customize with your own data to chronologically display events and activities involved in a project.