Downtime is meant to be the simplest part of Screen Time: pick a bedtime, and the phone winds down. So it is maddening when 9pm comes and goes and your child is still scrolling, or when you check the settings and find Downtime switched off again.
These are the eight causes behind nearly every Downtime failure, most likely first. Menu names below match recent iOS versions; older versions may differ slightly.
1. Block at Downtime Is Off
Downtime can either block apps or just remind your child that it is late. With Block at Downtime off, apps grey out at bedtime, but your child can tap past the reminder and keep going. It looks like Downtime is broken; it is working exactly as configured. Fix: Open Settings > Screen Time > Downtime (on your own iPhone, under your child's name if you use Family Sharing) and turn on Block at Downtime. It only protects anything if a Screen Time passcode is set that your child does not know.
2. Downtime Isn't Scheduled, or Not for Every Day
Downtime has two separate controls: a one-off switch that turns it on until tomorrow, and the Scheduled setting that repeats it. Parents often use the one-off switch once and assume it will repeat. The other trap is Customize Days: a schedule with different times per weekday can leave one day with no Downtime at all. Fix: In Downtime, turn on Scheduled, then check Every Day or go through each day under Customize Days.
3. The App Is on the Always Allowed List
Anything on Always Allowed ignores Downtime completely. Apple's defaults include Phone, Messages, FaceTime and Maps, and parents often add more for homework or music, then forget. Messages being allowed also means messaging continues all night unless you limit who your child can contact. Fix: Review Settings > Screen Time > Always Allowed and remove anything that is not essential. Then open Communication Limits and set who your child can reach During Downtime.
4. An Allowed App Has a Browser Inside It
Downtime blocks Safari, but many apps open web pages inside themselves. If an app with a built-in browser is on the Always Allowed list, it becomes a window to the web at midnight. Fix: Keep Always Allowed to apps without their own browser, and use Content & Privacy Restrictions to limit adult websites across the whole device.
5. The Clock or Time Zone Is Wrong
Downtime follows the device's clock. A wrong time zone, or a clock changed by hand, moves bedtime with it. Changing the clock is also one of the oldest tricks for getting round Screen Time. Fix: On the child's iPhone, open Settings > General > Date & Time and turn on Set Automatically. For the other common tricks, see how kids get around iPhone Screen Time.
6. Downtime Keeps Turning Itself Off
If you set Downtime and later find it off, one of three things usually happened. Someone who knows the Screen Time passcode switched it off, which may be your child. Settings synced from another device signed into the same Apple Account overwrote yours (the Share Across Devices setting controls this). Or you changed a setting before the previous change had finished syncing, and the older version won. Fix: Change the Screen Time passcode, make changes from one device only, and give each change a minute to sync before making the next.
7. Your Child Has Another Device
Downtime on the iPhone does nothing for the iPad in the bedroom. Each device follows your child's Screen Time settings only if it is signed into your child's Apple Account with Share Across Devices on. Fix: On every device your child uses, check the Apple Account at the top of Settings, then open Screen Time and confirm Share Across Devices is on.
8. It's an iOS Bug
Sometimes the settings are right and Downtime still fails. Apple confirmed a Screen Time bug in 2023 that stopped settings from sticking, and parents have reported new Screen Time glitches on iOS 26 releases. Fix: Update iOS on your iPhone and your child's, then restart both. Turn Scheduled off and back on to save the schedule fresh. If nothing works, the reset steps at the end of our iPhone Screen Time not working guide are the last resort.
If Bedtime Is Still a Battle
Even a perfectly working Downtime only switches the phone off; it does not make bedtime any less of an argument. Tap Guardian adds bedtime and school schedules and daily limits from one parent app, without Family Sharing or a child Apple Account, and gives your child a way to earn extra time by finishing tasks you approve, so evenings are not spent negotiating. It works on iPhone and Android.
Final Thoughts
Check Block at Downtime and the schedule first; together they explain most failures. Then trim Always Allowed, fix the clock, and cover every device. If Downtime works but daytime limits do not, see iPhone App Limits not working, and if your child's requests for extra time never reach you, see Ask for More Time not working.