Windows 10: My night light scheduling feature has completely stopped working

All of a sudden it won't turn the NL on at the designated time. Turning it on manually works. What could it be?

I've tried setting my clock myself to the time when it should turn on and it won't work. Restarted multiple times too.

I'm on 20h2

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:)

 

Night light schedule not working

Hi,

Thank you for writing to Microsoft Community Forums.

We understand your concern as you are unable to schedule the time for Night Light feature in Windows 10. In order to get clarity and to assist you accordingly, please reply with the answers to the questions below.

• What is the Windows 10 version and Build installed? (Type
  winver in Windows search/Run command)
  
• Are you aware of any changes, prior to this issue?

Meanwhile, we would suggest you to update the display driver from Device Manager.

1. Press Windows + X and select
   Device Manager.
   
2. Scroll down and expand Display Adapters. Now Right click on the display devices and select
   Update Driver.
   
3. Select Search automatically for updated driver software.
   
4. Select Update Driver.
   
5. Restart the PC and check

If the issue persists even after updating the driver, then we would suggest you to make the below registry change.

1. Press Windows +R key to open
   run command.
   
2. Type regedit and click on
   Ok.
   
3. Navigate to this location: HKEY_CURRENT_USER\Software\Microsoft\Windows\CurrentVersion\CloudStore\Store\Cache\DefaultAccount
   
4. Here, delete the following sub keys
   
   1. $$windows.data.bluelightreduction.bluelightreductionstate
      
   2. $$windows.data.bluelightreduction.settings
      

Note: Important this section, method, or task contains steps that tell you how to modify the registry. However, serious problems might occur if you modify the registry incorrectly. Therefore, make sure that you follow
these steps carefully. For added protection, back up the registry before you modify it. Then, you can restore the registry if a problem occurs.

Follow the steps to take backup of registry

After deleting the registry sub keys, restart the PC and then enable Night Light feature from Windows settings.

Let us know how it goes.

Aditya Roy

Microsoft Community – Moderator

 

Night light sunset to sunrise schedule stops working properly after update to 1809

Behold, the automatic schedule timing has become 00:00 - 00:00 after the latest update:





As such, the night light feature no longer works as it should. Please fix!

My date and time settings are set to automatic, in both the time and the time zone. I am not in a daylight savings area.

My current Windows specifications are:

• Edition: Windows 10 Enterprise
• Version: 1809
• OS build: 17763.194

EDIT: Even when I set the hours manually, the night light no longer works and the screen doesn't become warmer. Something is broken with this feature.

 

Night light schedule not working

The "set hours" (not location) option for night light scheduling is not working on my Surface Laptop 3. When the time hits for it to turn on, it doesn't and I have to do so manually and when morning hits for it to be turned off, I again have to do it manually.
How do I fix it so that the schedule works?