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The hour (h) is a time unit equal to 60 minutes or 3,600 seconds, the standard measure for work shifts, travel times, and business hours worldwide. Payroll calculations, flight durations, and daily schedules are all structured around hours. One hour equals exactly 3,600 seconds, and 24 hours make up one day.

The week (wk) is a time unit equal to 7 days or 168 hours, serving as the standard organizing period for business cycles, school schedules, and pay periods in most cultures. Project timelines, fitness plans, and recurring events are typically planned on a weekly basis. One week equals exactly 7 days or 604,800 seconds.