Just thought I'd share an issue I had with the format date to string action.

I was using to convert a date (Current date) in DD-MM-YYYY format from the current date to Australia/Sydney timezone.
When we tested it, it was not working. It was showing as the previous day.

What we had to do was change from using the [Current Date] workflow context to [Current Date and Time]. After this is worked fine.

Just thought I'd share in case anyone stumbles down this path of using the wrong context.