condition mean min max 4 h after light 267.1788725 227.448269 306.909476 8 h after light 282.2329395 223.836484 340.629395 12 h after light 258.891773 257.90523 259.878316 4 h after dark 224.484439 208.19808 240.770798 8 h after dark 107.5864385 97.906461 117.266416 12 h after dark 159.243332 159.243332 159.243332