Oops, it doesn't look like 'dab on britbongs day' is a national day..

Other days

buddy

Buddy Day
self appreciation

Self Appreciation Day
law

Law Day
lash

Lash Day
hiv awareness

Hiv Awareness Day
ask out your crush

Ask Out Your Crush Day
promposal

Promposal Day
african immigrant and refugee hiv and hep awareness

African Immigrant And Refugee Hiv And Hep Awareness Day
azonto is acceptable

Azonto Is Acceptable Day
pampering

Pampering Day