Oops, it doesn't look like 'captain sir tom moore day' is a national day..

Other days

promposal

Promposal Day
bonang

Bonang Day
singles

Singles Day
gum

Gum Day
polyamory

Polyamory Day
ask out your crush

Ask Out Your Crush Day
brow

Brow Day
ormille

Ormille Day
tulip

Tulip Day
lisp

Lisp Day