Unexpected format date time output

[NWEASD]

I created a power automate that is formatting date time to a number.  I would expect one result but getting something different.  Any thoughts on why this would be happening?

Here is my code 

int(formatDateTime(input date, 'yyyymmdd'))

So if I input 4/5/2021, for some reason I am getting 20210005

If you notice my month section is not turning up 04 which would be expected to be there.  Instead, I am getting 00 for a month.

[Pstork1 · Accepted solution]

Try this format instead

int(formatDateTime(input date, 'yyyyMMdd'))

'mm' in Power Automate pulls in the Minutes. 'MM' pulls in the Month.