I forgot my Screen Time password
I forget my screen time passcode
[Re-Titled by Moderator]
iPhone 6, iOS 12
Question marked as
Best reply
You will have to restore your iPhone to factory settings on your computer. Then set it up as a new device without using the latest backup, as the Screen Time passcode is part of the backup in iOS 12 and can't be reset individually.
Restore your iPhone, iPad, or iPod to factory settings - Apple Support
Only if your iOS is 13.4 or higher, the ScreenTime passcode can be reset without erasing the phone.