condition mean min max 4 h after light 5.45121 5.26081 5.82407 8 h after light 5.55602 5.3583300000000005 5.91553 12 h after light 5.588136666666666 5.37021 5.95752 4 h after dark 5.78789 5.59655 6.09199 8 h after dark 5.774366666666666 5.5164599999999995 6.04879 12 h after dark 5.934903333333334 5.62485 6.42139