Oops, it doesn't look like 'defense general chang wanquan arrives in tehran for day' is a national day..

Other days

Tell Ur Crush You Like Them Day

Get Funky Day

Appreciate Yaself A Lil Extra Day

Bounce Day

Aloxolt Day

Kiss A Brunette Day

Hoodie Day

Believe Day

Ormille Day

Self Appreciation Day