condition mean min max 4 h after light 211.40050300000001 206.285424 216.515582 8 h after light 254.7429335 250.894064 258.591803 12 h after light 266.74081 247.060947 286.420673 4 h after dark 301.30262200000004 257.296264 345.30898 8 h after dark 236.06951850000002 222.30898 249.830057 12 h after dark 211.646251 211.646251 211.646251