Measuring the window instead of assuming it
A licensed venue does not release its floor when it stops serving. Patrons leave over a period, staff complete their own close-down, furniture has to be moved, and only then can cleaning begin. Similarly, an early clinic is not empty until its opening hour; staff arrive before it. The genuine window is often two hours shorter than the difference between the two published times, and a plan built on published times will fail from the first week.
The practical step is to observe rather than ask. A walkthrough at close and a second at opening establishes the real availability. From there, tasks can be timed and sequenced. Where the total exceeds the window, the plan has to reduce scope, add labour or move something to a different day, and it is far better to make that decision deliberately at the outset than to discover it through incomplete work.
