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Time and date showing incorrectly after switching networks
Your phone normally sets its clock from the network it's connected to, and that update can lag right after landing, or stay wrong if automatic time is off.
The fix
iPhone, Settings > General > Date & Time > Set Automatically on. Android, Settings > System > Date & time, with automatic time and time zone on. If it's already on and still wrong, toggle it off and on to force a fresh sync, then confirm the clock matches the local time.
Why it matters beyond alarms
A wrong clock quietly breaks things that look unrelated: adding an eSIM can fail, authenticator and banking codes can be rejected, secure websites can refuse to load, and calendar events shift. If you're seeing odd failures right after a time-zone change, check the clock first.
Two lines, two time signals
With a home SIM and a KnowRoaming eSIM both active, your phone takes time from the network carrying data. If your home line still carries data, the phone may cling to home time. Selecting the KnowRoaming line for data fixes it. See Setting the KnowRoaming line as primary for data.
よくある質問
Restart, toggle airplane mode, or reach out to KnowRoaming's 24/7 support.
Since an eSIM functions similarly to a traditional SIM, your service provider may swiftly deactivate your service in the event that you misplace or have your device stolen. Do not hesitate to contact them immediately.
Be sure that your network plan allows for using it as a Personal Hotspot and that your provider has enabled it if you are unable to locate or activate it. To reconnect another device to Personal Hotspot, you must first restart both the iPhone or iPad that is providing the service and the second device. Verify that you are using the most recent version of Apple's iOS or iPadOS.
関連記事
- Adding fails when your phone's date and time are wrong
- Two-factor codes not arriving while abroad
- Use your KnowRoaming plan for data instead of your home SIM
- Weather and widgets showing the wrong location
- When does my plan start, and how are the days counted?
- Phone reverting to the home SIM automatically
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