condition mean min max 4 h after light 613.083226 259.780506 966.385946 8 h after light 330.474293 296.932663 364.015923 12 h after light 460.9436025 277.847441 644.039764 4 h after dark 950.3682555 460.525089 1440.211422 8 h after dark 1363.8714559999999 1089.472992 1638.26992 12 h after dark 1653.158986 1653.158986 1653.158986