In almost all situations, Windows 11 does an excellent job of managing your system clock automatically. It syncs with global internet time servers to ensure pinpoint accuracy and automatically adjusts for Daylight Saving Time. However, there are scenarios where the automatic sync fails—perhaps your motherboard’s CMOS battery has died, your internet connection is blocked by a strict firewall, or you intentionally need to test software behavior on a different date. When automatic syncing isn’t working or isn’t desired, Windows 11 allows you to manually override the system date and time.
How to Turn Off Automatic Time Syncing
Before you can manually set the clock, you must explicitly tell Windows to stop attempting to pull the time from the internet.
- Right-click directly on the Date and Time display located in the bottom-right corner of your taskbar.
- From the small context menu that appears, click on Adjust date and time. This will instantly open the correct page within the Settings app.
- Alternatively, you can open the Settings app (press
Windows Key + I), navigate to Time & language on the left, and click Date & time on the right. - Look for the toggle switch labelled Set time automatically.
- Click the toggle to turn it Off.
How to Set the Date and Time Manually
Once the automatic setting is disabled, the manual override option will become available.
- Immediately below the automatic toggle, look for the section labelled Set the date and time manually. (This button is greyed out and unclickable while automatic time is turned on).
- Click the Change button next to this option.
- A new “Change date and time” pop-up window will appear with several dropdown menus.
- Use the top row of dropdown menus to select the desired Month, Day, and Year.
- Use the bottom row of dropdown menus to select the desired Hour, Minute, and AM/PM.
- Once you have verified the details are exactly as you want them, click the blue Change button at the bottom of the pop-up.
Your system clock on the taskbar will instantly update to reflect your manual settings.
Reverting to Automatic Time
Running your computer with the wrong date and time can cause severe issues, particularly with web browsing (SSL certificates will appear invalid, preventing you from loading secure websites like banks or email providers) and Windows Updates. Once you have finished your testing or fixed your networking issue, it is highly recommended to revert the change.
Simply return to Settings > Time & language > Date & time and flip the Set time automatically toggle back to On. Windows will immediately reach out to the time server and correct the clock to the exact current moment.