Hi there,
you will need to use the CurrentDate() function. There are a couple of different formats you can put into this function to determine how the date is represented and more details can be found at CurrentDate function.
CurrentDate("MMM yyyy") will return "Sep 2020" (ie. the three letter month name and 4 digit year)
CurrentDate("MMMM yyyy") will return "September 2020" (ie. the full month name and 4 digit year)
CurrentDate("MMM yy") will return "Sep 20" (ie. the three letter month name and 2 digit year)
Regards,
Mark