I have a column with many thousands of rows. The column is meant to be date and is of the format dd/mm/yyyy

But, when I try to do formulas based on the dates, something is clearly amiss.

For example, if you try to apply autofilter on the dates, some of them are grouped as a year with the expandable boxes while others appear as their own items.

For each record I tried a formula to parse it apart.`=DATE(RIGHT(A2,4),MID(A2,4,2),LEFT(A2,2))`

That did not help.

I also selected the column and switched it from general to date format

I really don’t know how to ask the question any clearer. I can tell you that with a date of the format 1/11/2013 when I run `=year(right(A1,4))`

I get `1903`

instead of `2013`

. When I run `=date(right(A1,4),mid(A1,3,2),left(A1,2))`

the formula returns `2/10/3192`

It’s very simple why your formulas doesn’t work corectly. When yor’re using somehting like this: `RIGHT(A2,4)`

, your value from `A2`

translates to 41579 for 1/11/2013 (Excel stores all dates as integers and all times as decimal fractions. You can read more here). Next formula should work well:

```
=DATE(RIGHT(TEXT(A2,"dd/mm/yyyy"),4),MID(TEXT(A2,"dd/mm/yyyy"),4,2),LEFT(TEXT(A2,"dd/mm/yyyy"),2))
```

Btw, if you’d like to get correct format for dates, you can add formula in some empty column (but before set date format for this column):

```
=A2*1
```

and drag it down. Then copy values from this temp column and paste them using “Paste special->Values” in colunm `A`

(where should be date format as well)

Or you can use this simple macro:

```
Sub test()
With Range("A2:A100")
.NumberFormat = "dd/mm/yyyy"
.Value = .Value
End With
End Sub
```

Tags: date, excelexcel