Adjusting Screen Timeout on my Samsung Phone

Screen Timeout is an option on Samsung devices that will turn the screen off to save battery life. Out of the box, the default is 30 seconds. See the steps to change the Screen Timeout option to keep your phone or tablet screen on for longer. The maximum Screen Timeout time is 10 minutes, but you can also look at turning on the Smart Stay option to let the screen stay on for as long as you're looking at it. 

Please be advised that you are NOT able to set your screen timeout to none, and that you CANNOT  adjust the lock screen timeout.