condition mean min max 4 h after light 355.918501 349.461981 362.375021 8 h after light 404.9512775 329.30898 480.593575 12 h after light 584.112641 543.232057 624.993225 4 h after dark 555.272074 462.600092 647.944056 8 h after dark 659.526363 628.600373 690.452353 12 h after dark 711.258004 711.258004 711.258004