4 ms·

Then why not extend the week to a ten day period? The decimal system seems to work better.

• gabriel34 13y ago
  Because then we would have to alter the moon's orbit :D Interestingly, contrary to the seasons, the moon's phases bears no effect on our lives since the artificial illumination of the cities. The seven-day week could be a ten day week; on the other hand I would be weary of ten-day week because of possible connections with my (and humans in general) metabolism and internal clock. Perhaps five days worked per two days rested is our optimal. There is no reason why ten would be the magical number, but seven seems to be working; further studies are necessary.