condition mean min max 4 h after light 380.104361 298.116672 462.09205 8 h after light 469.568799 440.625279 498.512319 12 h after light 517.0176495000001 458.077581 575.957718 4 h after dark 367.110013 289.154761 445.065265 8 h after dark 337.1035035 284.885724 389.321283 12 h after dark 249.050429 249.050429 249.050429