24 hours public transport ticket in Tricity, Poland

Hello

Is there any 24 hours ticket which allows me to travel in ZTM bus, SKM trains in Gdansk?
Or I have to buy separate 24H tickets for ZTM & SKM?

Does each city Gdansk,Gdynia, ,Sopot have their own ticketing system? Or it's all common?

Yes:( There is a 24 hour ticket for all Gdansk buses/trams. There is a 24 hour ticket for all Gdynia buses. The two are not compatible AFAIK. There is a 24 hour ticket for the SKM too I presume....

There is no 24 hour ticket such as in London. 2 separate metropolis centres, competing with one another, seldom co-operating. That's the reality.

The friendly officer at Gdansk Glowny station advised me to buy 24H ticket worth 23 zloty which allowed free travel in all public transport in the tri-city.