condition mean min max 4 h after light 798.581316 756.455521 840.707111 8 h after light 668.4943495 653.978164 683.010535 12 h after light 756.193595 704.462826 807.924364 4 h after dark 684.0197915 622.932032 745.107551 8 h after dark 828.3528200000001 703.244743 953.460897 12 h after dark 690.712245 690.712245 690.712245