Blatter is seeking a fourth term as FIFA president and is being challenged by Asian confederation chief Mohamed Bin Hammam.
The 75-year-old told UEFA's Congress in Paris on Tuesday that if he wins he will definitely stand down in 2015, saying: "You know very well that I am a candidate for the next four years as FIFA president but these will be the last four years for which I stand as a candidate."
He added: "Together we have the task of bringing together the adventure we have started.
"We want to ensure a better future for our youth."
The new president will be elected at a Fifa Congress which starts on 31 May.
With Bin Hammam vowing to increase Fifa's decision-making power and spread its considerable wealth, Blatter is facing his first challenge since Issa Hayatou took him on - and lost - in 2002.
Bin Hammam is also currently attending the Congress for European football's governing body, Uefa, as they lobby federation presidents for their vote on 1 June in Zurich.
Uefa members make up more than one quarter of the maximum 208 Fifa voters that Blatter and Bin Hammam will attempt to woo.
The winner needs a two-thirds majority of valid votes cast in the first ballot, or a majority in the second.
Fifa has set an 1 April deadline for other candidates to be nominated by a single member federation.
"We are in extra time," said Blatter, referring to the time left before the election. "Let's wait and see what the outcome will be."
tag as u see fit
i could have sworn there was a "blatter infection" tag, maybe i just made that up