way earlier

[Sera sera]

A tells B of some new system that has recently been introduced in their state. A being from some other state informs B that the said system has been introduced in their state much before in time than it is in B's state.

Can I sums up A's dialogue this way- "This system has been introduced in my state way earlier."

Is the phrase way earlier correct?

P.S- Kindly correct grammatical mistakes if any in my post.

 

[Raymott]

"Way earlier" counts as a time in the past, and you should use the past tense. "This system was introduced ..." Or you could say, "A said that the system had been introduced way earlier in his state."
It's an acceptable phrase to most people.
If you want to use the present perfect tense, you can say "The system has already been introduced in my state" - without any other time markers.

 

[MikeNewYork]

"Way earlier" is a slang phrase. It is not incorrect, but "much earlier" would be more standard.