condition mean min max 4 h after light 3692.9362805 1973.693595 5412.178966 8 h after light 1856.200441 1392.738284 2319.662598 12 h after light 2846.957195 1636.629732 4057.284658 4 h after dark 1335.752708 712.415653 1959.089763 8 h after dark 7096.288364 3292.303258 10900.27347 12 h after dark 2086.998324 2086.998324 2086.998324