What is a session of consecutive working hours ending with a mandated rest period known as?

The term for a session of consecutive working hours that concludes with a mandated rest period is a "Duty Tour." This terminology is commonly used in various transportation and service industries where workers are required to follow strict schedules to ensure safety and efficiency. A Duty Tour encompasses the entire duration of time a worker is scheduled to perform their duties before taking a mandatory break or rest period, ensuring that workers have adequate time to recuperate and remain alert on the job.

In contrast to the other terms, a Duty Tour has a specific connotation related to the legal and organizational guidelines surrounding work hours and rest requirements. While "Service Period" might relate to a timeframe of providing a service, it does not emphasize the rest aspect. "Work Cycle" can refer to the broader pattern of work but lacks the defined structure related to rest periods. "Duty Shift" often refers to the immediate hours worked without necessarily including the mandated rest intervals that constitute a Duty Tour. Thus, "Duty Tour" distinctly captures the essence of both active working time and the necessary relaxation that follows.