Oops, it doesn't look like 'tamaki day' is a national day..

Other days

boba

Boba Day
ask out your crush

Ask Out Your Crush Day
martini

Martini Day
bonang

Bonang Day
cursing

Cursing Day
hiv awareness

Hiv Awareness Day
one

One Day
tulip

Tulip Day
boy friend

Boy Friend Day
stress awareness

Stress Awareness Day