Time limits alone won't stop vacation screen fights -- purpose, end-of-session warnings, spending, and privacy rules do.
Screen time spikes during school breaks, and so do the arguments over it. Setting a flat "two hours a day" rule lumps homework, texting friends, creative projects, and pure entertainment into one bucket -- and the fight just moves to whenever the timer runs out. Instead of a schedule, Golladream put together 10 rules that cover purpose, end-of-session warnings, spending, privacy, and knowing when to step in.
Write these as short rules parents follow too, not a list handed down to kids. Keep the non-negotiables -- sleep, meals, family plans -- firm, but leave room for kids to make their own choices on everything else. That's what makes a rule stick past week one.