For me, and in general though, I still believe winning in slot games isnt much about how much time a gambler spends playing, but it's more about how much lucky the gambler is, but then, it still makes more sense to play slot games with good enough bankroll than with a tiny one.
That's what I'm talking about. No matter the size of the bankroll and no matter how long a gambler spends their time on gambling, it's always a good practice to learn to take a break during a gambling session. When winning, the adrenaline and excitement boost up that's why gamblers will likely won't stop even for hours. When losing, it gives a reason to play more to chase those losses.
Short-time playing doesn't do anything effectively. There's no exact duration on how long should a gambler spend time playing gambling just to be better.
As much as possible, try to be responsible enough to take a break during gambling.