condition mean min max 4 h after light 538.9 538.9 538.9 8 h after light 560.85 430.6 691.1 12 h after light 917.4000000000001 661.4 1173.4 4 h after dark 1011.85 1003.7 1020.0 8 h after dark 764.2 728.2 800.2 12 h after dark 530.85 444.6 617.1