Lead time in Agile is the official business definition of the amount of time it takes to complete a project from start to finish. It is the total time elapsed from when a customer request is made to when the project is completed and delivered. Lead time is an important metric for Agile teams as it helps to measure the efficiency of the development process and identify areas for improvement. Lead time is typically measured in days, weeks, or months and can vary depending on the complexity of the project. Agile teams should strive to reduce lead time as much as possible to ensure that customer requests are met in a timely manner. By understanding the lead time of a project, teams can better plan and prioritize tasks, leading to a more efficient development process.