What Is a Project Deadline?

A project deadline is the agreed date by which a task, deliverable, or project must be complete. But deadlines are more nuanced than most teams realise — there are hard deadlines with serious consequences and soft deadlines with flexibility, and treating them all the same is one of the most common causes of poor schedule management. This guide covers definitions, types, the real reasons deadlines get missed, and a practical framework for consistently meeting them.