The outing at the Progress With Unity Stadium takes place over Valentine's weekend and will now kick off at 12:00 GMT on Sunday 15 February.
The Reds won the reverse Barclays Women's Super League fixture 5-1 in September.
There are other matches being held at the same time but Manchester City take on Leicester City on 14 February, and Brighton & Hove Albion versus Arsenal kicks off later on the Sunday.
United Women are back in action, following the festive break, when tackling the Gunners on Saturday at the Emirates Stadium, with a 12:30 GMT start.