Windows 11 Night Light can automatically apply warmer screen colors at specified times. Configure its strength and daily schedule without additional desktop customization software.
Open Settings > System > Display > Night light, enable scheduling, and choose either sunset-to-sunrise operation or custom hours.
Open **Settings > Time & language > Date & time**. Confirm that the displayed time and time zone are correct, and enable **Set time automatically** if appropriate. Night Light uses the system clock to determine when a custom schedule should activate.
Open **Settings > System > Display** and select **Night light**. Confirm that the Night Light controls are available rather than grayed out. This page contains the color-strength adjustment and automatic scheduling options.
Move the **Strength** slider to a comfortable level, such as 40, while temporarily enabling **Night light** to preview the result. The screen should display warmer colors as the value increases. Choose a level that keeps text readable and does not interfere with work requiring accurate colors.
Under **Schedule night light**, move the toggle to **On**. Windows will now allow the Night Light feature to follow a schedule rather than requiring manual activation. The schedule options should appear underneath the toggle.
Choose **Set hours** for a fixed schedule, or **Sunset to sunrise** if you prefer a location-based schedule. For a fixed configuration, set the start time to 21:00 and the end time to 07:00. The selected schedule will apply automatically according to the system clock.
Temporarily turn **Night light** on and off using its control in **Settings > System > Display**. Confirm that the display changes between its regular and warmer appearance. Return it to the state appropriate for the current schedule and verify that **Schedule night light** remains enabled.
Open Device Manager > Display adapters and check whether Windows recognizes your graphics adapter correctly. Use an appropriate graphics driver from the hardware manufacturer; certain display drivers do not support Night Light.
Check Settings > Privacy & security > Location and confirm that location services are available and permitted as appropriate. Alternatively, use Set hours without location-based scheduling.
Check Settings > Time & language > Date & time for an incorrect time zone or system clock. Review the start and end times under Schedule night light.
Its main effect is changing the screen's color temperature. Brightness remains a separate setting.
It can work with compatible external displays, although certain display drivers and configurations do not support it.
https://support.microsoft.com/en-us/windows/hardware/display-graphics/change-display-brightness-and-color-in-windows
Open Settings > System > Display > Night light and turn off Schedule night light. Disable Night light itself to restore the regular display colors.
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