condition mean min max 4 h after light 1209.6513195 1173.787235 1245.515404 8 h after light 1067.426906 762.744914 1372.108898 12 h after light 2228.3706655 823.469593 3633.271738 4 h after dark 1750.3666725 1620.155134 1880.578211 8 h after dark 2343.462826 866.770518 3820.155134 12 h after dark 783.429518 783.429518 783.429518