condition mean min max 4 h after light 806.764205 524.827278 1088.701132 8 h after light 1110.1184245 1018.743202 1201.493647 12 h after light 1106.6587494999999 1028.703162 1184.614337 4 h after dark 725.474592 463.61969 987.329494 8 h after dark 589.7351645 327.84649 851.623839 12 h after dark 720.684331 720.684331 720.684331