What type of schedule offers continual rotation but lacks flexibility?

A cyclical/12-hour schedule is characterized by a fixed and predictable routine where employees work in extended shifts, typically lasting 12 hours, which are then followed by a scheduled period of rest. This type of schedule allows for continual rotation, ensuring that services are available around the clock. However, it lacks flexibility since it adheres to a strict rotational pattern that does not easily accommodate personal preferences or last-minute schedule changes.

This predictability can be beneficial for operational consistency, but it does not permit adjustments based on individual circumstances or immediate needs, distinguishing it from more adaptable scheduling structures that offer flexibility.