This 1851 timetable from Lowell, Massachusetts, reveals the strict daily structure governing factory labor at Lowell Mills. Posted publicly in the mills, it outlined the precise ringing of bells that dictated when workers woke, began work, took meals, and ended their day. The schedule reflects the highly regulated nature of factory life, where time—not workers—controlled production. Despite reform efforts, the average workday still stretched to roughly twelve hours, demonstrating why labor activists pushed for shorter hours. This document highlights how industrial efficiency depended on discipline, routine, and close supervision of workers’ time.