April Fools' Days are filled with pranks and jokes.

I miss the good old days.

I always look forward to red letter days.

All Fools' Days is a day of pranks and jokes.

The cooling-off days are a great opportunity for customers to reconsider their purchase decisions.

Nine days' wonders are often short-lived phenomena that capture public attention for a brief period of time.

During slow news days, journalists struggle to find interesting stories to report.

I don't miss the bad old days.

Muck-up days are a tradition in many high schools where students play pranks and have fun before graduating.

Saint Stephen's Days is a public holiday in many countries.