condition mean min max 4 h after light 315.481013 233.973698 396.988328 8 h after light 356.6637045 321.710737 391.616672 12 h after light 337.462826 325.693595 349.232057 4 h after dark 235.1614695 207.129344 263.193595 8 h after dark 202.7845705 199.567853 206.001288 12 h after dark 194.926203 194.926203 194.926203