Back when I was active at White Wolf's Scion forums, I remember a thread or two about just this question. Consensus was that they are different individuals.
Just the same, one should keep in mind:
- we're talking about symbolic figures created to be relevant to life 2,500 years ago, who have then been reinterpreted via a renaissance perspective more than a thousand years later, and then through the modern lens and filter more recently
- even within the first few hundred years of their inception, given the way oral history is passed down, without copyright or preserved commentary by the original creator, means that massive changes could have occurred without us having any record of it
- the documented greek habits of conflating and melding dieties (see interpretatio graeca) suggests that two (or more) gods can be aspects of one-another
- the fact that Classical Mythology was less a solid and coherent block of beliefs and more the accumulated detrieus of dozens of local traditions and their interaction with similar traditions of nearby states,
- coded myth and mystery cult influences often result in myths that are supposed to be opaque to the outsider, and hold deeper meaning to the higher initiates
In other words, I think the GM is probably free to interpret it as bissociatively as he or she wishes. They most likely aren't the same - but you could argue otherwise and, as far as I know, no one could prove you were wrong, just controversial. There's certainly some nice allegory if Time neutered the Cosmos, and Time devoured it's own offspring, and the Gods rebelled against Time, and etc. Just be aware that any hardcore mythologists at your gaming table may give you some flack about your "mistake".
Our Cronus and Chronos pages are both pretty stubby, so a bit of comment about the confusion (or anything else you'd like to add to them) certainly couldn't hurt.
