condition mean min max 0 h after light 6.03919 5.95108 6.1273 4 h after light 4.63444 4.37935 4.88953 8 h after light 1.99565 1.63547 2.35583 4 h after dark 4.638294999999999 3.57177 5.70482 8 h after dark 5.23111 5.08957 5.37265 12 h after dark 6.944225 6.45959 7.42886