Extract Month from a date variable

I need to extract the month from a variable. In my workflow, I have a set variable action that uses the executed date. I need to get the month from that. So if the workflow runs on 8/26/2020, I want the return to be August. I am sure that there is probably an easy way to do this with a regular expression but none of what I am using works. When I was on 2013, I simply did a build string formatting the date, but I don't think that formatting is an option in O365.