Question: Which response best summarizes the 20-20-20 screen time rule? After 20 minutes of screen time, look away and toward the distance. Three times a day, 20 percent of your time should be spent on social media. Best practice is 20 minutes of screen time, 20 minutes of phone time, 20 minutes of writing. Concerning usage, 20 percent of people spend too much time on social media, 20 percent get it right, and 20 percent spend too little time on social media.