In a nutshell, power-down hour is a chunk of time before bed to be together as a family doing restful activities. When dinner ...
And in the power down hour, you have 3 twenty minute segments ... So, in our house, it's getting backpacks ready for school, finding shoes, you know, things that you do when you have kids.
"Farmers had to wait an extra hour for dew to evaporate to harvest hay, hired hands worked less since they still left at the same time for dinner and cows weren’t ready to be milked an hour ...