condition mean min max 4 h after light 309.8969 258.8983 378.0084 8 h after light 259.7912 176.352 317.6709 12 h after light 279.1752666666667 237.2289 334.6762 16 h after light 408.25 341.3315 528.9137 4 h after dark 340.22415 90.24705 522.5611 8 h after dark 310.1692 228.6666 390.0601