Laptop Shows the Wrong Time and Date: Causes and What to Do

Laptop Shows the Wrong Time and Date: Causes and What to Do

If you notice that the time or date is incorrect after turning on your laptop, there is no need to assume that the device has a serious fault. In most cases, the issue can be fixed in just a few minutes.

Incorrect time can cause more than simple inconvenience. Some websites may fail to open, Windows updates may stop working, and you may see errors when signing in to email, online banking, or corporate services.

The good news is that the cause is usually related to basic Windows settings or a discharged BIOS battery.

How to Identify the Cause

Pay attention to how the laptop behaves:

• the time resets after every shutdown;
• the date returns to the same year;
• the clock runs too slow or too fast;
• the time becomes correct after connecting to the Internet;
• Windows reports a time synchronization problem.

These signs can help identify the cause more quickly.

The Most Common Cause: Incorrect Time Settings

After reinstalling Windows or changing system settings, the wrong time zone may be selected.

You can check it here:

Settings → Time & Language → Date & Time

Make sure that:

• Set time automatically is enabled;
• Set time zone automatically is enabled if needed;
• the correct time zone is selected.

If the laptop is connected to the Internet, click “Sync now.”

If the Time Resets After Every Shutdown

This is one of the clearest signs of a discharged BIOS or CMOS battery.

This battery keeps the internal clock running while the laptop is turned off.

If the battery is no longer holding a charge, the laptop may:

• reset the date;
• reset the time;
• forget some BIOS settings.

In this case, replacing the CMOS battery usually solves the problem.

If the Time Becomes Correct After Connecting to the Internet

This means that the system clock is still working, but Windows is using incorrect local data before it connects to the network.

Usually, it is enough to check:

• the time zone;
• automatic synchronization;
• the date and time settings.

If Websites Do Not Open or Certificate Errors Appear

Incorrect time is a common cause of messages such as:

• “Your connection is not private”;
• certificate errors;
• inability to connect to a secure website.

Before reinstalling the browser or Windows, check the date and time first.

How to Check the Time Synchronization Service

Press Win + R.

Enter:

services.msc

Find the Windows Time service. It should be running.

If the service is disabled, automatic time synchronization will not work.

How to Synchronize the Time Manually

Open:

Settings → Time & Language → Date & Time

Click “Sync now,” then check whether the time has been corrected.

If the Problem Started After a Battery Replacement or Repair

Sometimes BIOS settings may reset after a repair or after the internal battery has been disconnected.

In this case, it is worth:

• checking the date and time in BIOS;
• making sure they are saved after shutting down the laptop.

How to Tell If the Problem Is Hardware-Related

The following symptoms may indicate a hardware issue:

• the date constantly returns to the same value;
• the time resets after every shutdown;
• BIOS does not save settings;
• the laptop reports a CMOS error;
• the problem remains after replacing the CMOS battery.

When Repair Is Needed

Possible causes include:

• a discharged CMOS battery;
• a fault in the BIOS power circuit;
• a motherboard issue;
• liquid damage;
• problems caused by an unsuccessful repair.

If replacing the CMOS battery and checking Windows settings does not help, we recommend contacting a service center for diagnostics.

Conclusion

In most cases, an incorrect time or date on a laptop is caused by Windows settings or a discharged BIOS battery. These problems can often be fixed without special technical knowledge.

However, if the date and time continue to reset even after synchronization or CMOS battery replacement, the issue may be related to the motherboard or other hardware components. In that case, it is better not to delay diagnostics to avoid further problems with the laptop.