Oops, it doesn't look like 'apprentice week starts day' is a national day..

Other days

slime

Slime Day
bonang

Bonang Day
nae nae

Nae Nae Day
hot chocolate

Hot Chocolate Day
law

Law Day
youth

Youth Day
cuddle up

Cuddle Up Day
pick me

Pick Me Day
buddy

Buddy Day
coffee

Coffee Day