condition mean min max 4 h after light 8.767 7.3717 10.1623 8 h after light 8.085085 8.06144 8.10873 12 h after light 11.18945 10.7616 11.6173 4 h after dark 12.6402 12.4962 12.7842 8 h after dark 11.9197 11.4434 12.396 12 h after dark 10.574200000000001 10.0122 11.1362