condition mean min max 4 h after light 388.4578295 358.837448 418.078211 8 h after light 334.629465 302.981904 366.277026 12 h after light 376.2711445 351.868521 400.673768 4 h after dark 412.250853 339.155134 485.346572 8 h after dark 526.751571 494.395863 559.107279 12 h after dark 343.374797 343.374797 343.374797