What is Superman's birthday?

Answer 1

If you want to get technical, it is impossible to know Kal-El's true date of birth since the Kryptonian calendar was destroyed with the planet, however, Action Comics #149 (Oct. 1950) gives October as Superman's birthdate. Comics of the 1960s through 1980s describe Superman's birthday as February 29.

Clark Kent, meanwhile, would celebrate his birthday on June 18, the date the Kents first found Clark.

Following the 1980s editorial-revamp DC called Crisis on Infinite Earths, Kent's birthday is given as February 29 & Superman: Secret Origin #1 (Nov. 2009) depicts Kent celebrating his birthday on December 1.

Answer 2

As a comic book hero, the Man of Steel was created in 1938 in Action Comics. The writers assumed a 1920's-1930's timeline in the old Superboy strip- Superman as a young kid. It was assumed he reached maturity in real time- 1938.

Answer 3

Superman does not have a birthday like June 5th or October 29th. He was born on Krypton and their calendar is unknown.

He debuted in 1938 so technically that's his "birthday", or at least "birth" year.

Answer 4

According to Action Comics (which introduced the character)- the Superman saga began in 1938. So it is assumed he came to Earth that year.