condition mean min max 4 h after light 305.4566515 288.5274 322.385903 8 h after light 291.5578185 289.641095 293.474542 12 h after light 285.1880665 276.766971 293.609162 4 h after dark 358.2921665 331.16823 385.416103 8 h after dark 293.474542 293.474542 293.474542 12 h after dark 243.725227 243.725227 243.725227