Poland will remain restrained in its plans for accession to the banking union as it ties it with the process of euro adoption, which is currently at the stage of setting preparation goals rather than setting dates, central bank NBP head Marek Belka told a banking conference.

"Certainly Poland still has some time to decide on" entering banking union, Belka said.

Belka's rationale: Poland will have to mull entering the banking union if it decides to accelerate euro adoption plans, but those are still at stage of how best to prepare for joining the euro zone rather than at the stage of setting dates for adoption.