Change String date (DD.MM.YY) to Dateformat(YYYY-MM-DD) in excel

Question

I have nearly 2,00,000 records of data in my excel sheet and I have Date columns as a string like this (dd.mm.yy) I have to convert it into dateformat of (YYYY-MM-DD) .

I tried this -

For the example date string, 1.11.11 , I tried to replace .11 with .2011 but it will also change the month to 1.2011.2011 and my sheet has huge records from 2010 to 2016 .

Example - My cell has this 1.11.11 and i want to convert it to 2011-01-01 (YYYY-MM-DD)

Please help ! Thank you.

Answer 1

Use this to change it to a true date:

=DATE(2000+SUBSTITUTE(RIGHT(A1,2),".",""),SUBSTITUTE(MID(A1,FIND(".",A1)+1,2),".",""),SUBSTITUTE(LEFT(A1,2),".",""))

Then format the output to your desired: YYYY-MM-DD

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To do it in place one would need vba.

Select your date cells and run this code.

Sub datechange()
Dim rng As Range
Dim str() As String

For Each rng In Selection
    str = Split(rng.Value, ".")
    rng.Value = DateSerial(2000 + str(2), str(1), str(0))
Next rng
Selection.NumberFormat = "yyyy-mm-dd"

End Sub

Answer 2

假设这些值以A1开头，并且所有值都真正位于DD.MM.YY中（带有零（04、06等）。

="20"&RIGHT(A1,2)&"-"&MID(A1,4,1)&"-"&LEFT(A1,2)

Answer 3

尝试下面的公式：

=TEXT(SUBSTITUTE(A1,".","/"),"YYYY-MM-DD")

Answer 4

尝试这个：

select convert(varchar,convert(datetime,'26-July-2018'),105)