Определение slack time в Английский Язык Английский Язык словарь
The maximum amount of time that you can delay an activity and still finish your project in the shortest possible time = 1 WEEK IN EXAMPLE
The amount of time that an activity can be delayed without delaying the project (3)
The comparison of the projected completion date for an operation or project task as compared to the required date, which indicates the amount of time it could be delayed without impacting later operations or tasks