Oops, it doesn't look like 'pretend to be a time traveller day' is a national day..

Other days

eat what you want

Eat What You Want Day
lost sock memorial

Lost Sock Memorial Day
self appreciation

Self Appreciation Day
self care

Self Care Day
brow

Brow Day
cursing

Cursing Day
ride the wind

Ride The Wind Day
youth

Youth Day
stress awareness

Stress Awareness Day
blanket fort

Blanket Fort Day