condition mean min max 4 h after light 328.045887 311.780964 344.31081 8 h after light 409.3850265 398.929976 419.840077 12 h after light 400.5161675 382.037957 418.994378 4 h after dark 452.153161 375.535804 528.770518 8 h after dark 422.8386355 367.939978 477.737293 12 h after dark 352.865467 352.865467 352.865467