When was St. Paul converted to Christianity?

St. Paul was converted to Christianity on his way to Damascus, in the 30s of the first century A.D..

On his journey to Damascus, the Resurrected Christ appeared to him and it was this encounter that brought about his dramatic and immediate conversion.

In commenting on the conversion of St. Paul, Pope Benedict XVI states that when Paul met Christ on the road to Damascus, “…it was not simply a conversion… but rather a death and a resurrection for Paul himself. One existence died and another, a new one was born with the Risen Christ.”