Formulate a library investigation

A library manager wants to plan staffing for the next teaching week and asks, “Find when the library is busiest.”

Entrance-counter records are available for the 10 most recent teaching days. Each record contains the time of 1 entrance. The library manager will use the result.

Complete the formulation by stating:

1. what busiest means;
2. the required output;
3. the time boundary;
4. 1 assumption about the entrance records; and
5. 1 constraint on the time periods.

Then write the complete computational task in 1 or 2 sentences.