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Excel:如何将文本时间(日期)转化为可识别数据?

  • 2026-10-30 00:32:03
Excel:如何将文本时间(日期)转化为可识别数据?

在日期与时间函数里,有DATEVALUE与TIMEVALUE两个函数。
它们不仅看起来十分相像,功能也一样,用来把文本类型的日期与时间转化为Excel能够识别的日期、时间。
话不多说,我们一起来了解一下吧~~
01  DATEVALUE
DATEVALUE函数,用来把文本格式的日期转化为Excel可识别的日期序列号。
文本日期不能进行排序、加减、计算差值,只有在转化为可识别的数据后才能参与计算,这就是DATEVALUE函数存在的意义。
其语法=DATEVALUE(文本日期)
如图所示,转换后的日期是一串数字,将其格式设置为日期格式后即可正常显示。
冷知识:日期1900年1月1日转化后为数字“1”,1900年1月2日等于“2”,以此类推......
02  TIMEVALUE
TIMEVALUE函数,是可以把文本格式的时间转换为Excel可识别计算的时间小数。
同样的,文本时间也不能计算时长,只有转换之后才能直接相减。
其语法=TIMEVALUE(文本时间)
公式计算结果为0-1之间的小数,它代表这个时间在一天中的比例。
同DATEVALUE函数一样,将其格式设置为时间格式后也可正常显示时间。
03  实用技巧
  • 既有时间、又有日期的转换
公式=DATEVALUE(A2) + TIMEVALUE(A2)
转换后可以得到一个完整可计算的日期时间。如下所示,
  • 计算工时(考勤)

公式=(TIMEVALUE(B2)-TIMEVALUE(A2))*24

已知,TIMEVALUE函数转化后为时间小数,两个时间相减可以得到一个时长,乘以24(一天24小时)即可计算出工时。

实际应用时,可根据公司需求选择是否减掉午休时间,如上图所示。
此外,如果需要计算成分钟数,可将公式中的24改为1440(24*60)。
  • 万能转换
需要注意,DATEVALUE与TIMEVALUE两个函数仅对文本有效,如果单元格本身就是标准的时间、日期就不用再套入函数可直接用于计算,否则还会出现错误提示。
但若将转换公式改为=IFERROR(DATEVALUE(A2),A2),则可兼容错误。
同样的,时间转换可以写成=IFERROR(TIMEVALUE(A2),A2)
04  写在最后
关于这两个函数,你还有哪些好用的技巧?欢迎分享~~

期待下周与你相见~我们每周,一见。每周一,见。

PS:Excel不同版本菜单栏略有差别,WPS差别最大,但只要学会操作方法,其他都不会是问题。

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  1. CONNECT:[ UseTime:0.000685s ] mysql:host=172.18.0.4;port=3306;dbname=h_sjds;charset=utf8mb4
  2. SHOW FULL COLUMNS FROM `fenlei` [ RunTime:0.000917s ]
  3. SELECT * FROM `fenlei` WHERE `fid` = 0 [ RunTime:0.000514s ]
  4. SELECT * FROM `fenlei` WHERE `fid` = 63 [ RunTime:0.000353s ]
  5. SHOW FULL COLUMNS FROM `set` [ RunTime:0.000534s ]
  6. SELECT * FROM `set` [ RunTime:0.000259s ]
  7. SHOW FULL COLUMNS FROM `article` [ RunTime:0.000683s ]
  8. SELECT * FROM `article` WHERE `id` = 516269 LIMIT 1 [ RunTime:0.000360s ]
  9. UPDATE `article` SET `lasttime` = 1793857553 WHERE `id` = 516269 [ RunTime:0.001673s ]
  10. SELECT * FROM `fenlei` WHERE `id` = 65 LIMIT 1 [ RunTime:0.000526s ]
  11. SELECT * FROM `article` WHERE `id` < 516269 ORDER BY `id` DESC LIMIT 1 [ RunTime:0.000452s ]
  12. SELECT * FROM `article` WHERE `id` > 516269 ORDER BY `id` ASC LIMIT 1 [ RunTime:0.000372s ]
  13. SELECT * FROM `article` WHERE `id` < 516269 ORDER BY `id` DESC LIMIT 10 [ RunTime:0.000485s ]
  14. SELECT * FROM `article` WHERE `id` < 516269 ORDER BY `id` DESC LIMIT 10,10 [ RunTime:0.000498s ]
  15. SELECT * FROM `article` WHERE `id` < 516269 ORDER BY `id` DESC LIMIT 20,10 [ RunTime:0.001401s ]
0.092903s