The standard advice is 6 weeks off work. But your mileage may vary.
I am 56, had RARP at UCLH exactly two weeks ago.
Once the catheter was out (on day 11), I basically felt as good as new, with almost 100% continence.
I still have to be a bit careful, as I get blood in my piss if I run around too much.
Contenence does depend to a large extent on how close to the sphincter muscle they need to cut.
But Kegel exercises help a lot. The earlier you start and the more you do, the better.
Best of luck!