The Pilgrims will now entertain Guiseley on Tuesday October 27 before travelling to Bradford Park Avenue on Monday November 2.
Both matches will kick-off at 7.45pm.
The Pilgrims' home fixture against Chorley – scheduled to take place on Saturday November 7 – will now be played on Tuesday December 8 (kick-off 7.45pm) due to the Magpies reaching the first round of the Emirates FA Cup by virtue of a bye (following the demise of Macclesfield Town).
A fixture could be brought forward to plug the gap on November 7 depending on the outcome of FA Cup fourth qualifying round ties next weekend.
United's immediate schedule for October and November now comprises:
OCTOBER
Saturday October 24: AFC Telford United (H)
Tuesday October 27: Guiseley (H)
Saturday October 31: Southport (A)
NOVEMBER
Monday November 2: Bradford Park Avenue (A)
Tuesday November 10: Darlington (A)
Saturday November 14: AFC Fylde (A)
Tuesday November 17: Kettering Town (H)
Saturday November 21: Spennymoor Town (H)
Saturday November 28: Blyth Spartans (A)