The time displayed in the time windows does not match the actual time. Or, the time in Windows has to be reset often.
Perform one or more of the following methods to troubleshoot and resolve issues related to the time displayed in Windows. If the notebook clock is still wrong after completing all the methods, please contact HP service and support for further assistance.
Method 1: Disable or enable the internet time settings
Some computer models can be configured to synchronize the clock in the PC to an Internet time clock when the PC connects to the Internet. If the clock does not keep the correct time, verify that the correct time zone is selected.
Synchronizing the PC clock with the Internet time usually provides the most accurate method of keeping time and is normally recommended. However, in some cases, connecting to the Internet time clock server may cause the PC clock to display the wrong time.
Do the following actions to toggle the Internet time setting to the improve the accuracy of the PC clock.
- Double-click the time icon in the System Tray in the bottom right corner of the Task Bar .
- Click the Internet Time tab, if it exists. Continue with Step 3 .If there is no Internet Time tab, the computer does not have this synchronisation feature, go to Method 2: Disable advanced power management to improve time keeping accuracy.
- Change the time setting and monitor the accuracy of the PC clock.
- If it is already checked, remove the check mark from Automatically synchronize with an Internet time server option.
- If it is not already checked, select the check mark on the Automatically synchronize with an Internet time server option.
- Click OK , and then restart the computer.If the computer continues to have the same problem of keeping accurate time, do these steps again to reset the Internet time setting back to its original condition before continuing to Method 2: Disable advanced power management (APM).
Method 2: Disable BIOS Advanced Power Management (APM)
The BIOS advanced power management (ADM) function can cause incorrect time readings on the PC clock. Do the following actions to disable the BIOS Advanced Power Management function. After the BIOS APM is disabled, perform Method 3: Enable Advanced Configuration Power Interface .
- Turn off the computer.
- Press the power button to start the computer and immediately press F10 to access the BIOS setup panel.NOTE:Different models may prompt you to press a different key, such as F1, F2, or Esc to access the BIOS setup.
- Press the appropriate Left Arrow or Right Arrow key to navigate to the Power or Power Management menu option.NOTE:If the PC's BIOS does not have an Advanced Power Management function, restart the PC and go directly to Method 3: Enable Windows Advanced Configuration Power Interface (ACPI) .
- Press the appropriate Up Arrow or Down Arrow key to select the Advanced Power Management option.NOTE:Different BIOS systems may label the function as APM or Power Savings .
- Press the appropriate key to select the Disabled option.
- Press the F10 key to select Save and Exit . Allow the PC to restart and go to Method 3: Enable Windows Advanced Configuration Power Interface (ACPI) .
Method 3: Enable Windows Advanced Configuration Power Interface (ACPI)
The Windows Advanced Configuration Power Interface (ACPI) specifies when components should be active or inactive to conserve battery power. Conflicts between time values in the BIOS and Windows setting can cause irregular computer clock operation.
After disabling the BIOS Advanced Power Management (APM) functions, do the following actions to select a Windows ACPI configuration.
- Access the Power Management feature on the Windows Control Panel.
- In Microsoft Windows XP, click Start , click Control Panel , click Switch to Classic View , and then double-click Power Options .
- In Windows 98 and ME, click Start , click Settings , click Control Panel , double-click the Power Management icon.
- On the Power Management window, select the desired Power schemes settings from the drop-down lists. Click OK to accept the scheme and time setting changes.
Type of Computer Recommended Scheme Desktop Home/Office Desk
Notebook Portable/LaptopTo customize the time value settings select a different time value, then click Save As , enter a name for the power scheme and click OK .
- Restart the computer to activate the new time settings.
Method 4: Remove and reinstall Realtime clock
The Realtime clock will not keep accurate time if the drivers are corrupted or missing. Do the following actions to start the PC in the Safe Mode, remove the Realtime clock drivers, and reinstall the drivers on start-up.
- Turn off the computer.
- Press the power button to start the computer and press the F8 key repeatedly. The Windows Start-Up Menu displays.
- Select Safe Mode , and then press Enter .
- After Windows starts, click Start , Control Panel , and double-click the System icon.
- Select the Hardware tab, and click the plus sign (+) next tot theSystem Devices .
- Click the plus sign (+ ) next to System Devices .
- Select System CMOS/Realtime Clock , right-click to select Uninstall .
- After removing the driver, allow the PC to restart. The Realtime Clock will reinstall automatically.
Method 4: Update the system BIOS
Do the following steps to update the computer's BIOS to the most current version.
- Click Start , select Help & Support and click Update Software & Drivers or you can use the following link to view the HP Drivers & Downloads web page .NOTE:An internet connection is required to access the HP Help & Support site and the tools.
- Enter the model number into the Notebook model field.
- Select the appropriate Operating system .
- If a BIOS update is available for the model Notebook, it will be listed on this page. Follow the steps on the Download page to download and install the BIOS update.