I think they were contrasting the number of days in the weekend to the other possible reduced hours proposal: 4 days, 8 hours (so 3 day weekends), and suggestin

I think they were contrasting the number of days in the weekend to the other possible reduced hours proposal: 4 days, 8 hours (so 3 day weekends), and suggesting 5 days, 6 hours (2 day weekends, one less than the alternative).