condition mean min max 1 h after light 20.07577656 17.13498392 22.08230141 3 h after light 21.224684336666666 19.67754809 23.02130596 5 h after light 16.7581867 13.76577405 20.36319677 7 h after light 18.57190653 16.15035018 21.75904169 9 h after light 16.02688206 13.8885889 18.20941765 11 h after light 17.17878691 13.73248474 20.55686745 13 h after light 18.7018527 14.86041986 21.82114728 15 h after light 19.14555365 18.36916469 20.22652735 1 h after dark 19.316386826666665 17.07795574 23.11546775 3 h after dark 16.835037943333333 16.31484861 17.63776149 5 h after dark 18.813922096666666 17.41572459 21.11146333 7 h after dark 22.021774006666668 19.80179841 23.89110173