The Reds are still meeting the Seagulls at Broadfield Stadium on Sunday 2 November, but it will now kick off at midday, instead of 14:00 GMT.
The Barclays WSL clash will see United make a return to action following an international break.
Our home clash with Chelsea is also confirmed as a 19:30 BST kick-off on Friday 3 October.
Meanwhile, our regular home venue at Leigh Sports Village has a new name.
It will now be called the Progress With Unity Stadium, from immediate effect, after the change gained approval at a Wigan Council meeting.