National Mustard Day is observed on the first Saturday in August.
In case you didn’t know, Mustard is a condiment made from the seeds of a mustard plant (white or yellow mustard, Sinapis hirta; brown or Indian mustard, Brassica juncea; or black mustard, B. nigra).
So now you know, you may now go about your business.
The Haus of Dcaligari 