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User profile for user:
hc1111
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Community Specialist
Hey there Yumtuc,
We recommend trying a basic restart of your iPhone since this can help with one-off issues such as the clock on your screen.
Should the issue persist, check for any time or clock related applications that might have been installed recently. If you see any, go ahead an uninstall it and check if the clock still appears. Use the steps below to uninstall the app if you find one:
1. Touch and hold the app.
2. Tap Remove App.
3. Tap Delete App, then tap Delete to confirm.
Delete apps on your iPhone, iPad, and iPod touch - Apple Support
Take care!