A project timeline is a visual representation that outlines the schedule of tasks and milestones for a specific project. It helps project managers and team members understand the sequence of activities, deadlines, and the overall duration of the project. By organizing tasks chronologically, a timeline ensures that everyone involved is aware of their responsibilities and the project's progress. Timelines can be created using various tools, such as Gantt charts or project management software. They are essential for tracking progress, identifying potential delays, and facilitating communication among team members. A well-structured timeline contributes to the successful completion of a project within its designated timeframe.