How to reset Screen Time passcode?

To reset the Screen Time password on your personal iPhone follow these steps:

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These steps apply to iOS 27 and iPadOS 27 and later.

1. Open the Settings app, then tap Screen Time. 
2. Tap Passcode & Management.
3. Tap Change Screen Time Passcode, then tap Change Screen Time Passcode again. You need to authenticate with Face ID or enter the passcode used to unlock the device. If asked, enter the Apple Account email address and password that you used to set up the Screen Time passcode.
4. Enter a new Screen Time passcode, then enter it again to confirm. 

It’s recommended that you don’t skip adding a Screen Time Passcode Recovery. That way, if you forget your Screen Time passcode, you can use your Apple Account to reset it. If you need to recover your Screen Time passcode, you must use the same account you entered when you first set up the Screen Time Passcode Recovery.

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copied from: Change your Screen Time passcode on an iPhone or iPad - Apple Support

In case this is an iPhone for a child, only the family organiser or other parent/guardian can change or reset the code:

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Reset the Screen Time passcode for a child's iPhone or iPad

These steps apply to iOS 27 and iPadOS 27 and later. Learn how to set a Screen Time passcode for your child's device on iOS 26 and earlier. 

1. On the family organizer or parent/guardian's device, open the Settings app.
2. Tap Family, then tap your child's name. If you don’t see your child’s name under Family, make sure you’re both signed in to your devices with your own Apple Account and that your child's account is part of the Family Sharing group.
3. Tap Passcode & Management. If you don't see Passcode & Management, you may need to set up usage and parental controls first, then set up a Screen Time passcode.
4. Tap Change Screen Time Passcode, then tap Change Screen Time Passcode again. 
5. Enter your old Screen Time passcode.
6. Enter a new Screen Time passcode, then enter it again to confirm.

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