condition mean min max 4 h after light 276.0 276.0 276.0 8 h after light 291.8 254.1 329.5 12 h after light 496.65000000000003 384.1 609.2 4 h after dark 429.65 289.4 569.9 8 h after dark 274.20000000000005 267.3 281.1 12 h after dark 246.2 233.6 258.8