Oops, it doesn't look like 'capital for the third consecutive day' is a national day..

Other days

embarrass your best friend

Embarrass Your Best Friend Day
boy friend

Boy Friend Day
ask out your crush

Ask Out Your Crush Day
emoji

Emoji Day
chocolate milkshake

Chocolate Milkshake Day
bow tie

Bow Tie Day
lash

Lash Day
coffee

Coffee Day
youth

Youth Day
get funky

Get Funky Day