tracking workers' hours first began tracking hours http://www.pbs.org/livelyhood/workday/weekend/8hourday.html The Eight-Hour Day and Weekend The Eight-Hour Day and Weekend The struggle for the eight-hour day tracking workers' hours The Eight-Hour Day and Weekend http://www.pbs.org/livelyhood/workday/weekend/8hourday.html 100 hours How the Weekend Was Won 8 hour workday http://www.pbs.org/livelyhood/workday/weekend/8hourday.html 8 hour workday http://www.pbs.org/livelyhood/workday/weekend/8hourday.html http://www.pbs.org/livelyhood/workday/weekend/8hourday.html first began tracking hours decades http://www.pbs.org/livelyhood/workday/weekend/8hourday.html tracking workers’ hours 8 hour workday