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

Other days

boyfriend

Boyfriend Day
bow tie

Bow Tie Day
aloxolt

Aloxolt Day
one

One Day
boy friend

Boy Friend Day
coffee

Coffee Day
martini

Martini Day
ride the wind

Ride The Wind Day
hiv awareness

Hiv Awareness Day
fiancee

Fiancee Day