condition mean min max 4 h after light 1392.2227395 989.367268 1795.078211 8 h after light 1264.3389745 1002.287559 1526.39039 12 h after light 1022.189157 757.00168 1287.376634 4 h after dark 418.00234450000005 155.019119 680.98557 8 h after dark 229.19527399999998 178.633964 279.756584 12 h after dark 769.072247 769.072247 769.072247