Fifa president Sepp Blatter says the Qatar 2022 World Cup final should be played no later than 18 December.
' The World Cup will not go on until the 23rd, definitely not, we have to stop at the 18th.
'I am against going to the 23rd.'
A Fifa taskforce has recommended a November/December tournament and held discussions about a 23 December final, which would affect domestic schedules.
The 78-year-old, who is in Northern Ireland for this weekend's International Football Association Board (IFAB) meeting, said he would propose that idea to the Fifa executive committee, with a final decision expected on 20 March.
Europe's governing body Uefa said this week that it wanted the World Cup to start on 26 November and end on 23 December.