Hallmark I'm guessing has no National Drummer Day card. I have to wonder how official it really is. I can't see Congress taking their time to give the drummers some. I think someone who wasn't qualified made this up. I mean if most drummers weren't aware of it...who is?
For those who didn't know, we get a whole month. From 1996 to 2013 it was November. Since 2014 it is May. Being that the timing has changed, I'm guessing it's observance was initiated by a guitar player!
International Drum Month, also known as International Percussion Month, is observed next on Friday, May 1st, 2020. It was observed the month of November from 1996 until 2013. It has been observed the month of May since 2014.
I celebrate it every year. This year I used a Spruce instead of Douglas Fir as my tree and following the traditional dinner of BBQed drumsticks, me and the gang had our gift exchange. It was fabulous and I look forward to next years celebration.