如果数字在A1,函数=text(A1,"e.m.d") 是日期,或者=date(A1,A1,A1)=text(A1,"h:m:s")是时间,或者=time(A1,A1,A1)
要看你的具体数值,像这样:数值125503转换成时间格式12:55:03数据在A1,B1输入=TEXT(A1,"00!:00!:00")
A1中是原数据B1输入=TEXT(A1,"YYYY年MM月DD日,at H:MM AM/PM")