condition mean min max 0 h after light 172.531 170.8 174.262 4 h after light 126.05250000000001 100.186 151.919 8 h after light 254.719 236.458 272.98 4 h after dark 311.6875 265.828 357.547 8 h after dark 220.69150000000002 219.918 221.465 12 h after dark 156.76749999999998 145.23 168.305