condition mean min max 4 h after light 121.785308 110.613392 132.957224 8 h after light 142.568283 124.827586 160.30898 12 h after light 184.075226 147.232057 220.918395 4 h after dark 310.3358055 308.124438 312.547173 8 h after dark 314.545002 255.917385 373.172619 12 h after dark 220.348738 220.348738 220.348738