A project timeline is a tool that helps project managers and teams understand the time-frame of a project. It is made up of milestones, which are defined as significant events or accomplishments in the life cycle of a project. This template provides an overview of the timeline that can be used for any type of projects. A project timeline is an important tool for project managers to see how long a project will take and the tasks that will be completed. It also helps the manager to set a timeline for the project. A 6 months timeline template is a useful tool for all types of projects. It provides a general view of how long it will take to complete certain tasks and how many times they need to be repeated throughout the process.