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

Other days

offer

Offer Day
martini

Martini Day
nae nae

Nae Nae Day
boy friend

Boy Friend Day
tulip

Tulip Day
reading

Reading Day
latina equal pay

Latina Equal Pay Day
boba

Boba Day
get funky

Get Funky Day
bounce

Bounce Day