condition mean min max 4 h after light 261.964018 221.772902 302.155134 8 h after light 256.7122795 216.247532 297.177027 12 h after light 193.6581055 163.802378 223.513833 4 h after dark 177.384724 165.295686 189.473762 8 h after dark 177.487717 166.155134 188.8203 12 h after dark 149.669382 149.669382 149.669382