What term describes the time remaining after a task is complete before the next task begins?

The correct term that describes the time remaining after a task is completed before the next task begins is "Lag Time." Lag time specifically refers to a delay between two sequential tasks where one task is complete, but the subsequent task does not commence immediately. This could be due to various reasons such as the need for additional preparation or waiting for resources.

Float Time refers to the amount of time that a task can be delayed without causing a delay in the project’s overall completion. Lead Time refers to the amount of time that must pass before a subsequent task can start, prior to the completion of the preceding task. Buffer Time, while it can imply extra time built into a schedule to accommodate unforeseen delays, does not specifically describe the elapsed time after one task's completion and before another’s start.

In project management, understanding concepts like lag time supports effective scheduling and resource allocation, enabling managers to better navigate dependencies between tasks.