What year was Samson alive?

According to traditional chronology, Samson was active from 950 BCE to 930 BCE, when he died. He didn't live a long life, so we may surmise that he was born around 970 BCE.See also:

Timeline

The book of Judges was written between 1050 and 1000 B.C. The account of Samson appears in the 13th chapter of the book.