condition mean min max 4 h after light 1511.2622195 1345.157515 1677.366924 8 h after light 1492.3887995 1429.385903 1555.391696 12 h after light 1611.9152060000001 1532.367586 1691.462826 4 h after dark 1298.030806 1123.725757 1472.335855 8 h after dark 1255.442982 1150.235612 1360.650352 12 h after dark 1162.786628 1162.786628 1162.786628