The WBBL will get its first prime time conclusion with the semis and final being played under lights at North Sydney Oval in late November.
The two semi-finals will be played on November 25 and 26 with the final on November 28 - the day between the opening two ODIs between Australia and India - with all matches to begin at 7.10pm local time.
The WBBL finals have previously been played in afternoon time slots, including last season when it was a standalone tournament for the first time.
"The move to a full prime time Finals series is another major leap in the evolution of the rebel WBBL," Alistair Dobson, the head of the Big Bash, said.
"As we pass the half way mark of our second standalone season, we're delighted to confirm that the pinnacle events of our season will be taken live into homes around the country at a family friendly time.
"This announcement is a testament to the outstanding work of our Clubs and the League who have delivered a safe and successful tournament thus far. We thank the NSW Government for recognising this and rewarding our loyal fans in Sydney."
The tournament has just passed the halfway mark with the group stage finishing on November 22.