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

Other days

self appreciation

Self Appreciation Day
youth

Youth Day
cuddle up

Cuddle Up Day
gum

Gum Day
carpenters

Carpenters Day
latina equal pay

Latina Equal Pay Day
reading

Reading Day
singles

Singles Day
boba

Boba Day
ormille

Ormille Day