City led twice at St James’ Park but eventually had to make do with a point after Jonjo Shelvey curled home a superb 87th-minute equaliser to clinch a 2-2 draw for the Magpies.
That left Guardiola’s men 11 points adrift of leaders Liverpool after Jurgen Klopp’s side’s 2-1 win at home to Brighton, but asked if an 11-point gap would be too big to bridge, he replied: “It’s not time.
“We have another opponent in front of us, so we now have to try to win games, win games and see what happens.
“I said yesterday at the press conference that it’s not a good idea to think about the Premier League or think how many points. We have to win games, win games, win games, and when you don’t win, it will be more difficult.”
City took a 22nd-minute lead on Tyneside when Raheem Sterling blasted home his 15th goal of the campaign, but they were ahead for just three minutes with Jetro Willems producing an equally-decisive finish after exchanging passes with Miguel Almiron.
The visitors looked to have won it with eight minutes remaining when Kevin De Bruyne chested down a headed clearance and thumped the ball past the helpless Martin Dubravka off the underside of the crossbar.
However, they were undone for a second time when substitute Christian Atsu played a free-kick square to Shelvey, who swept it imperiously beyond the diving Ederson.