The phrase "already dawned" is correct and usable in written English.
It can be used to indicate that dawn has occurred earlier than expected or to emphasize that a new day has begun.
Example: "By the time we finished our meeting, it had already dawned, and the sun was rising."
Alternatives: "has already broken" or "has already arrived".
And odds are, you don't like it — a realization that has already dawned on the New York City Taxi and Limousine Commission.
It must have already dawned on Klopp that his principal task is the undertaking of a relatively recent cultural shift that has scourged Anfield, one that dictates when it feels like Liverpool are verging on a bad result, it usually happens.
And, according to a recent report from Citigroup, the "age of renewables" has already dawned in the US.
It should have already dawned on him/her, but just make sure she/he understands that it's okay if she/he feels a little sad knowing that you and your spouse "stand in" for Santa, but that, even though Santa isn't real in the strictest sense of the word, it's a lot of fun for the parents to play this role for their children.
He proclaimed the good news that the long-promised Kingdom was already dawning, that the consummation was here.
The third time, day is already dawning and he sees his father's back: he is sleeping deeply.
Despite this queasiness over heavily modified food (a recent New York Times poll found more than 90% of Americans want GMOs labeled), a new era of so-called "extreme" genetic engineering is already dawning in grocery aisles.
That era is already dawning, contends San Francisco entrepreneur Jon Bischke.
As a result it may already have dawned on the pair that, even should they go out to Italy on Sunday, they are no longer in line for the sort of derision heaped on earlier squads of which they were a part.
But before I blast my dude with a less-than-helpful Would you just get the @#$* out of the @#$*-ing tree already! it dawns on me: he can't.
"Guilty, guilty, guilty, guilty," she repeated over and over, as the reality of a prolonged prison sentence for Manning on top of the three years he has already spent in detention dawned.
