Hiya
Ferries from Split to Hvar are daily and they take 1 hour
As for the time, the catamaran from Pula to Zadar takes 4 hours and 45 minutes, and the bus from Pula to Zadar takes about 7 hours.
It sounds long but they often stop along the way and it doesn’t really matter in the air-conditioned bus.
On top of that, the bus from Zadar to Split goes pretty much every half an hour and costs between 60 – 70 kuna – I don’t know how long it takes, two to three hours??? Maybe.
Hope this helps and this info can give you more ideas: https://ferryspots.com/pula-hvar-ferry/