将日期时间字符串转换为 excel 中的日期

Question

I have two columns with date-time values such as "2019-08-15T00:45:28.228Z". I want to convert each of them into date format columns, and then find number of minutes between the dates.

eg:

| A1                       | A2                       | Date(A1) | Date(A2) | A2-A1 in minutes |
|--------------------------|--------------------------|----------|----------|------------------|
| 2019-08-15T00:45:28.228Z | 2019-08-15T00:55:28.228Z |          |          | 10               |
| 2019-07-25T00:45:45.127Z | 2019-07-25T01:25:55.127Z |          |          | 40               |

I have not been able to convert the columns into a date format, because it has a time element as well, and all online examples seem to be only for date

Answer 1

You can use LEFT function to retrieve the date (it will then be displayed in its original format, like 2019-08-15 ), or simply do --LEFT to convert the result to a number and change its formatting to Date using Excel:

Then use MID function to retrieve the times and do your A2-A1 calculation (format the last column as Time ):

Update - as per Paul's suggestion, the length of the syntax will always be the same so you could use the following functions:

=--LEFT(A2,10)
=MID(A2,12,12)

Answer 2

To get the data time all we need to do is remove the T and the Z so:

=--REPLACE(LEFT(A2,23),11,1," ")

Then format to the desired format.

Then a simple subtraction of the dates and a format of [mm] will return the desired output.