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

Other days

unicorn

Unicorn Day

hiv awareness

Hiv Awareness Day

lisp

Lisp Day

healing

Healing Day

cursing

Cursing Day

azonto is acceptable

Azonto Is Acceptable Day

stress awareness

Stress Awareness Day

raise awerness of zeus

Raise Awerness Of Zeus Day

eat what you want

Eat What You Want Day

offer

Offer Day