condition mean min max 4 h after light 9.11507 9.10039 9.12975 8 h after light 10.100850000000001 10.099 10.1027 12 h after light 10.706299999999999 10.5603 10.8523 4 h after dark 13.8202 12.5092 15.1312 8 h after dark 12.28245 11.4553 13.1096 12 h after dark 12.097349999999999 12.0513 12.1434