What Times Are the First, Second and Third Shift?

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The precise hours vary from business to business, but generally, first shift begins between 7 a.m. and 9 a.m., second shift between 3 p.m. and 5 p.m., and third shift between 11 p.m. and 1 a.m. This distribution allows businesses to run for 24 hours, maintaining three groups of workers.