4 Day week?

I love this idea. Simple idea, government employees work 5 days a week, 8 hours a day. Move it to 4 days of 10 hours each. Besides the classic savings left right and centre, the idea that government is not going to be in place to bugger up my life for another day is frankly good. And plus most of the work that needs government intervention is not driven by working days at all. I need to pay in my council tax, or renew my licence or complain about noise. What's the connection with hours worked? The state needs to calculate the average rainfall in the state or needs to find out the number of children in class 7. What's the time involved? and if one says that its important that the state government has to be open for 5 days, why not for 7 days? :) We have to slowly move away from this idea that hours worked is equal to work done. Only for a very few professions is that correct. Not for all, and it will be less and less as more and more automation takes place...