Wappler's Date Format Display

I remember that in PHP Wappler’s date formats are different than normal PHP date formatting.

Where can I find a page/description of the date formatting?

For right now I’d like to format it to show like Mar/22 - (short month appreviation)/(two number year).
In PHP it would be M/y but that doesn’t work in Wappler.

I’d like to know all the abbreviations.

Thanks!
Jeff