447 天…四百四十七天
09.4:15 + 31 + 30 + 31 + 31 + 30 + 31 + 30 + 31 = 260(天)10.1:31 + 29 + 31 + 30 + 31 + 30 + 31 + 31 + 30 + 23 = 297(天)260 + 297 = 557(天)