condition mean min max 4 h after light 420.189249 299.60798 540.770518 8 h after light 554.3108015 458.927378 649.694225 12 h after light 379.680709 299.539749 459.821669 4 h after dark 261.78312800000003 248.006553 275.559703 8 h after dark 232.8747085 223.30898 242.440437 12 h after dark 169.025108 169.025108 169.025108