let me think about this for a moment:
In at 0630, out at 1700. 10.5 hours a work a day. 1 hour off for lunch, so really 9.5 hours a day, five days a week. 47.5 hours per week, minimum,
because I am in usually 1.2 hour prior and leave around 17.30 to 18.00. Once a month a pull a Weekend shift of 0600 to 1800. Then there are TDYs, late conference calls, early meetings, etc etc etc. Average about 50 to 60 hours a week. Not bad, and I consiter that typical for most working class joes.
Now, this is in what is not a deployable unit, but a major command headquarters.
When I was at BH, we were working 7 days a week, on call 24 hours a day, usually putting in 18 hour days. We did that for two years with a two week break once a year. I almost wanted to go back to iraq, just to get some down time.
A four day work week would do what for the DOD? Nothing.