condition mean min max 4 h after light 441.364436 417.7042 465.024672 8 h after light 523.366205 477.447796 569.284614 12 h after light 520.6610909999999 475.167957 566.154225 4 h after dark 616.239697 537.369231 695.110163 8 h after dark 574.2048295 468.353608 680.056051 12 h after dark 429.616672 429.616672 429.616672