Has the concept of Kryptonian stardates or calendars ever been used to specify Superman's birth in a way that translates to an Earth year?

Her parents moved from Athens to the US in 1913, a number of years before her birth on April 7, 1922, in Chicago, Illinois. The youngest of three girls, she ... Brandon Routh was born in Des Moines, and went on to star in "Superman Returns," "Scott Pilgrim vs. the World," and "The Arrow." Apr 13, 2016 ... As far as I know that traditional doctrine still held sway in the 1930s when Superman was born; the 100 km limit had not been proposed yet, and ... Jun 11, 2010 ... Nelson Bridwell. This writer/editor was born in Sapulpa in 1931, and, while I wasn't aware of his Oklahoma roots at the time, when I ... ... Superman, but Jimmy reveals that he has known since freshman year. He ... born yesterday, so Superman comes in and knocked out the guards. Superman ... ... (born 2006[1]) is the son of Clark Kent and Lois Lane, the twin brother of ... When Onomatopoeia tricked Superman into a trap where a group of Intergang ... Dec 1, 2017 ... It was April 18, 1938 when National Publications released their first issue of Action Comics highlighting a superhero named Superman. For ten years, he was the senior writer of the Superman series for DC Comics. Stern has written hundreds of stories about such diverse characters as Green ... Action Comics was published in 1938. But what no one realizes is that Superman was actually created in 1932, just weeks after Jerry Siegel's father was killed ... Nov 24, 2015 ... …in 1958's Action Comics #241, it's revealed that Superman celebrates both the date of his birth on Krypton and the date his rocket landed on ...