condition mean min max 4 h after light 320.622904 318.810104 322.435704 8 h after light 203.772294 166.261088 241.2835 12 h after light 322.8138785 263.706322 381.921435 4 h after dark 187.089863 165.078211 209.101515 8 h after dark 259.44863499999997 199.92126 318.97601 12 h after dark 274.548748 274.548748 274.548748