Thus far in my first playthrough I've dedicated my time to completing every single side quest (and with my high skills build I'm seriously opening up a crate full of additional side quests), exploring every single nook & cranny, searching every single container, beating every single pazaak player to exhasution and trouncing every single swoop rider's time.
Thus far I've logged just over 40 hours and I've just finished my 3rd planet :
I got my lightsaber 35 hours into the game. :">