Wiktionary
n. (context idiomatic English) A new beginning; a fresh start; an important, promising turning point.
Wikipedia
Dawn of a New Day is the first studio album by the Canadian country music singer Crystal Shawanda. It was released in Canada on June 24, 2008, and in the United States on August 19. It produced five singles in "You Can Let Go", "What Do I Have to Do", "My Roots Are Showing", the title track and "Try". "You Can Let Go" reached number 21 on the Hot Country Songs charts.
Usage examples of "dawn of a new day".
Somewhere out there was Asheville, awaiting the dawn of a new day, a city still inhabited by over a million civilians and six divisions of infantry.
At this very moment, in the quiet dawn of a new day, was not the earth giddy with crime and distress?
It led him onward and still onward through a measureless night into the dawn of a new day.
The harsh, bright dawn of a new day might come to the world outside, but it would never penetrate the cool darkness of this sanctuary.
He had not believed heruntil he stepped into the dawn of a new day.