condition mean min max 0 h after light 3.59237 3.58827 3.59647 2 h after light 10.21614 9.11058 11.3217 4 h after light 7.81779 7.33789 8.29769 8 h after light 6.918335 6.51698 7.31969 12 h after light 8.456845000000001 8.01556 8.89813 2 h after dark 8.184275 7.64314 8.72541 4 h after dark 7.717475 7.46704 7.96791 8 h after dark 6.015665 5.83819 6.19314 12 h after dark 3.61986 3.30197 3.93775