• April Fools' Day

  Thursday, 1 April 2027 · Worldwide

  A day of light-hearted pranks and jokes.

• World Health Day

  Wednesday, 7 April 2027 · Worldwide

  The World Health Organization's founding anniversary, marked each year with a global health theme.

• Earth Day

  Thursday, 22 April 2027 · Worldwide

  A global day for environmental protection, first held in 1970.

• World Book and Copyright Day

  Friday, 23 April 2027 · Worldwide

  UNESCO's day celebrating books and reading. (The UK and Ireland hold their own World Book Day in March.)