Zeus, the chief deity of the Greek pantheon, is an immortal god whose exact age is not defined in mythology, as he was born in the distant mythical past

. According to Hesiod's Theogony , Zeus is the youngest child of the Titans Cronus and Rhea, born after the swallowing and disgorging of his siblings, placing his mythological birth in an ancient, timeless era

. From a mythological literalist perspective, some interpretations suggest Zeus must be at least several hundred thousand to over a million years old, based on the timeline of human existence and mythic events like the Titanomachy (the war between Titans and Olympians)

. In some modern fictional or speculative contexts, Zeus is sometimes said to be as old as the universe itself, with references to him existing since the Big Bang, making him over 13.8 billion years old

. However, this is a contemporary fictional interpretation rather than classical mythology. In summary, Zeus's age is essentially timeless and symbolic, reflecting his status as an eternal god rather than a mortal being with a measurable lifespan