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

Other days

carpenters

Carpenters Day
frozen yogurt

Frozen Yogurt Day
bow tie

Bow Tie Day
ask out your crush

Ask Out Your Crush Day
african immigrant and refugee hiv and hep awareness

African Immigrant And Refugee Hiv And Hep Awareness Day
hiv awareness

Hiv Awareness Day
bubble bath

Bubble Bath Day
prosecco

Prosecco Day
reading

Reading Day
azonto is acceptable

Azonto Is Acceptable Day