Ariel Lawrence, the writer of God of War 2,
stated that Cronos's birth led to the very birth of time. And there are more indications of this than just her word, although they most definitely cement it.
The same WoG mentions, first of all, that time didn't exist when the Primordials fought each other - that is, eons and eons. Which indicates an indefinitely vast period of time, something that can't be ascribed. Which is supported first and foremost by the wording Gaia (who narrates the series) uses to describe it. She
says it raged on for "an eternity". She could've said hundreds or thousands of years. The Titan War itself
was officially stated to have lasted hundreds of years, which puts a quantifiable scale on it (Lahkesis also states the Titan War entertained her for a few centuries), but the Primordial War is stated by all valid sources to have lasted indefinitely long.
Why? Because, as WoG says, time didn't exist yet when it took place, so it by no means can be quantified.
The Steeds of Time, the horses in God of War 2 that are tethered to the Island of Creation, were gifted to the Sisters of Fate by Cronos in an attempt to have him change his fate,
as stated by Gaia in the game. They are said to be "of time" because of who they belong to, namely Cronos. So the idea that Cronos was a representation of time of sorts, subtly traces back to God of War 2.
Secondly, one of the most telling pieces of evidence actually comes from the new Norse game. In the Comic Con 2018 panel dedicated to God of War, they showed various concept arts of Kratos.
One of them states that Kratos's bloodline is cursed by the cycle of patricide, a cycle of son killing their fathers that "traces back to the very beginning of time". This is a
huge indication of Cronos and the beginning of time being related. The cycle of patricide began with Cronos, Kratos's grandfather, killing his father, Uranus. The cycle traces down to the beginning of time,
because Cronos began it, and his birth led to the appearance of time.
There's literally no other way to interpret this. Uranus is stated by Gyges to be the son of Chaos -
who is a woman in the series, as seen here. So he didn't start the cycle, since the description specifies sons slaying their fathers.
Finally, the last piece of evidence that Cronos birthed time is that Gaia, his mother, and the Titans in general
are stated to consider time meaningless. Remember that Cronos was the last Titan to be born, so it makes sense that his kin who are older than him wouldn't really be bound by something that is younger than they are.
I already know people are going to say the scan is talking about age in-context. It's actually not.
When Kratos defeats the Sisters of Fate and travels back through time to change his fate, teleporting all the Titans to the future and reversing thousands of years worth of events, they are completely unaffected by the changes. Despite the fact that Kratos reversed them being banned to Tartarus so that it never happened to begin with, the past isn't retconned from their memories and the events of time. Helios, in fact,
mentions the events of Chains of Olympus (more on that later), which were only possible because Zeus and the Gods won the war and banished the Titans to Tartarus.
In fact, Gaia from the past not only
recognizes future Kratos,
she knows everything about their deal, such as the fact that she saved Kratos several thousand years later from dying at Zeus's hands in order to serve the Titans.
I already expect people to say "if the Titans weren't restrained by time and knew all the future events, how did they lose the war?"
The answer is easy enough, and answered by God of War 2. The Sisters of Fate, who, as the description should reveal, control the fates of everyone (and everything, including the landscape like rivers and volcanoes), were
the ones to deem that the Titans lost the war. In fact, they lost
because the Sisters manipulated their threads to their liking, as Lahkesis states herself in the novels. So no, it's not a contradiction.
To summarize, Cronos was stated by WoG to have birthed time with his appearance, the new game's concept arts describe the cycle of patricide, which was started by Cronos when he killed Uranus, as something that traced back to the literal beginning of time, the Primordial War is suggested to have taken place before time itself, the Titans are implied not to be restricted by time, and finally Gaia herself knows everything that's ever happened, future or past, time paradoxes or no paradoxes.
Now give me a single, single piece of evidence that Cronos didn't create time that isn't based on "no he obviously didn't lol"