How Many Eons of geologic time?

Question

How Many Eons of geologic time?

Answer 1

2

Precambrian and Phanerozoic

Sometimes 4. Archean and Proterozoic are included under Precambrian.

Answer 2

depends on whether your a buddhist or have read the gospel of judas or seen the cartoon about christmas with the flying dinosaur.   An Eon is a cycle of existence?

Answer 3

Four - Hadean, Archean, Proterozoic, and Phanerozoic