Is there an industry standard that IPS uses for regular expression on profile fields?

I'm trying to create a rowing split time field. I selected text area for the field type and I tried using this expression for the Regular Expression:

^(([0]?[0-5][0-9]|[0-9]):([0-5][0-9]))$

that should display something like 1:39 ... if you are a really good indoor rower .... 

The expression I used was rejected.  I don't know if it is because there is a colon in the expression or what.

I got the code from Regular Expression Library (regexlib.com)

I have moved this to our developer forum, which is a better place for you to get an answer on this.

 

PS: If I did a 1:39 Im pretty sure I would die 😄