Klopp has complained about fixture congestion and the TV schedule amid an injury pile-up at Liverpool but Mourinho claims he was making the same points 16 years ago.
"Klopp arrived by 2015," said the Tottenham boss.
"I arrived in 2004 so what he knows from 2015, I know since 2004. And nothing changes. We have to adapt to it and that's the way it is."
Mourinho is preparing for a Europa League tie against Ludogorets of Bulgaria while trying to keep players fresh for Sunday's London derby against Chelsea in the Premier League.
"They (Chelsea) were lucky this week that the draw gave them a Tuesday match," said Mourinho.
"That's not a new thing, that happens all the time.
"We knew since we went into the Europa League so we're not going to complain about it.
"We knew we were to always play on the Thursday."