The 12-team tournament which was due to be held this year in Auckland and Whangarei was postponed due to Covid-19.
The new dates mean the tournament will be extended from 35 to 43 days, meaning all teams will have a minimum of five rest days between matches in align with the approach recently approved for the men's competition.
The extension of the tournament window also allows for a revamped tournament format that will see all matches take place on Saturdays and Sundays with no overlap.
The pool phase will be played on the weekends of 8-9, 15-16 and 22-23 October, 2022 at Eden Park, Northlands Events Centre in Whangārei and Waitakere Stadium.
The quarter-finals will take place on 29-30 October followed by semifinals on Saturday, 5 November.
The bronze medal match will be played on Saturday, November 12, with Eden Park set to create history by becoming the first stadium to host both the men's and women's Rugby World Cup finals.
World Rugby chair Sir Bill Beaumont said: "We are fully committed to accelerating the women's game at all levels and while the postponement was disappointing for everyone, it has provided the unique opportunity to review every aspect of the event to ensure it is the best it can be for the players, fans around the world and the wonderful and enthusiastic New Zealanders".
