condition mean min max 4 h after light 455.6993905 232.872838 678.525943 8 h after light 306.0080285 241.686409 370.329648 12 h after light 512.7624000000001 290.548261 734.976539 4 h after dark 717.8250535 665.224786 770.425321 8 h after dark 1077.3081525 995.536312 1159.079993 12 h after dark 1227.283318 1227.283318 1227.283318