Kairós (in ancient greek καιρός, kairós) is a concept from the Greek philosophy. It represents an undertemined time-lapse in which something important occurs. Its literal meaning is «right or opportune moment». In Christian theology, it is associated with the «time of God». The main difference with Cronos (in ancient Greek griego, kρόνος, krónos) is that while Kairós is of a qualitative nature, Cronos is cuantitative. As a god, Kairós was only half-known while Cronos was a worshipped divinity.
