condition mean min max 4 h after light 839.0871884999999 801.159459 877.014918 8 h after light 887.9792525 863.920509 912.037996 12 h after light 1083.286486 1024.56347 1142.009502 4 h after dark 823.5680745 755.442554 891.693595 8 h after dark 1084.45598 957.509092 1211.402868 12 h after dark 977.386343 977.386343 977.386343