It's the 5th by way of seventh century CE when outer structure and appearances of Hindu temples in north India and south India started to widely diverge. Hanuman’s Panchmukhi Avatar, with its 5 faces symbolizing various Instructions, signifies his omnipresence and the power to protect his devotees from all evils. https://hanumantempleadelaide.blogspot.com/2025/01/hanuman-mandirs-centers-of-devotion-and.html