For me - approx 120 hours and done none of the 5 main dungeons.
After a while you can get an approximate game play time. It's a shame the Switch does not explain these stats in more detail without the parental app. But the parental app is not retrospective so if you don't install it before you start playing BotW, the time there will not be complete.
After a while you can get an approximate game play time. It's a shame the Switch does not explain these stats in more detail without the parental app. But the parental app is not retrospective so if you don't install it before you start playing BotW, the time there will not be complete.