Wenger may have transformed the fortunes of the Gunners since taking over at Highbury in September 1996, but the Frenchman accepts his time will soon "be up" as the club must one day look for new leadership.
"It is (time up), because I am 63 years old and will not work at 100. That, though, is not the most important, what is important is that when you are somewhere, you give your best," said Wenger, whose side host Swansea in their FA Cup third-round replay tomorrow night.
"How long will I stay? I have a contract until 2014, and I always respected my contracts.
"It is important is that the club goes the right direction - we have a very young team who have fantastic qualities and [it is important] that I help them to get their qualities transformed into positive results.
"Let's not forget that last year we finished third [in the Premier League], as long as that is seen as a disaster, it is not too bad for the future of the club."