Screen Time in Game Center is a feature that allows you to see how much time you spend playing games on your iOS device. To enable Screen Time, follow these steps:
1. Open the Settings app on your iOS device.
2. Scroll down and tap on Screen Time.
3. Tap Turn On Screen Time.
4. Tap Continue and enter your passcode to confirm.
5. Select This is My [device] and tap Done.
6. Now, open the Game Center app and sign in with your Apple ID if prompted to do so.
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