Oops, it doesn't look like 'declare trump the bestliest golfer of all time day' is a national day..

Other days

nail polish

Nail Polish Day

Me Day

lost sock memorial

Lost Sock Memorial Day

mean girls

Mean Girls Day

self appreciation

Self Appreciation Day

self care

Self Care Day

hannah

Hannah Day

pick me

Pick Me Day

kiss a ginger

Kiss A Ginger Day

special education

Special Education Day