condition mean min max 4 h after light 339.8370555 319.233798 360.440313 8 h after light 421.30004399999996 414.155134 428.444954 12 h after light 399.578289 379.438793 419.717785 4 h after dark 366.569698 361.291955 371.847441 8 h after dark 334.21027300000003 308.342335 360.078211 12 h after dark 274.539749 274.539749 274.539749