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

Other days

lisp

Lisp Day
cuddle up

Cuddle Up Day
aloxolt

Aloxolt Day
latina equal pay

Latina Equal Pay Day
blanket fort

Blanket Fort Day
gum

Gum Day
martini

Martini Day
kiss a brunette

Kiss A Brunette Day
reading

Reading Day
boba

Boba Day