Q: Context: The eleventh season of the American television sitcom The Big Bang Theory premiered on CBS on Monday, September 25, 2017. It returned to its regular Thursday time slot on November 2, 2017, after Thursday Night Football on CBS ended. The season concluded on May 10, 2018.

Question: when does season 11 of big bang theory end? Let's give stream of consciousness first:
To answer this question, we should know that: The season concluded on May 10, 2018. Therefore, the final answer is May 10 , 2018.