问题
In Excel 2007, I want to do date difference for the following dates as below:
A B C
1 Date1 Date2 Difference of A and B
2 2009.11.28 01:25:46:0287 2009.11.28 01:25:46:0287 ?
3 2009.11.28 01:25:46:0443 2009.11.28 01:25:46:0443 ?
Kindly help me with a formula in Excel 2007, to get the difference of the above dates.
回答1:
Excel stores Dates as a number equal = number of days since 01/01/1900, hence you can just take the difference. i.e.
C2 = A2-B2
Will give you difference in days.
If you want it in seconds, for example, then:
C2 = (A2-B2) * 24 * 60 * 60
If you need to parse the string including the fractions of seconds then:
=DATE(MID(A2,1,4),MID(A2,6,2),MID(A2,9,2))+TIME(MID(A2,12,2),MID(A2,15,2),MID(A2,18,2))+MID(A2,21,4)/(24*60*60*10000)
Will convert A2 into an Excel DateTime. I suggest you put it in cell d2 and copy to e2. C2 can then be based off those.
来源：https://stackoverflow.com/questions/1825884/difference-of-datetimes