The Magpies' final trip to Goodison Park to face Everton on Saturday, 5th October, which was initially set to kick-off at 3pm, will now get under way at 5:30pm.
And United's game at Chelsea, which had been due to take place on Saturday, 26th October, has also been rescheduled. Eddie Howe's men will now travel to Stamford Bridge for a 2pm kick-off on Sunday, 27th October.
Both games will now be broadcast live on Sky Sports.
Any further alterations to the club's fixture schedule will be communicated at the earliest opportunity.