condition mean min max 4 h after light 11.6081515 11.332202 11.884101 8 h after light 10.6337075 10.374992 10.892423 12 h after light 11.2564715 11.052214 11.460729 4 h after dark 10.928557999999999 10.679724 11.177392 8 h after dark 10.4602735 9.198045 11.722502 12 h after dark 9.939474 9.939474 9.939474