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To turn on Night light, open Start → Settings → System → Display and switch on Night light. Open its settings to adjust the Strength slider or schedule it for sunset-to-sunrise or custom hours. You can also toggle it from taskbar Quick Settings.
Night light warms the screen’s colors; it does not replace brightness controls or Dark mode. The steps apply to Windows 11 and Windows 10, though Windows 10 support ended on October 14, 2025.
What Night light does
Night light shifts the display toward warmer colors, making whites look less cool and, at higher strength, yellow, orange, or red. It can be turned on manually or set to activate on a schedule. Microsoft describes it as a way to show warmer colors at night; individual comfort varies, and it is not a medical treatment or a guarantee of better sleep.
Because the feature deliberately changes color output, do not rely on it while judging color for photography, video editing, illustration, design, color grading, or print proofing. Turn it off for those tasks.
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Microsoft explains Night light’s warmer-color effect and driver limitations.
Turn Night light on or off
- Open Start, then select Settings.
- Go to System → Display.
- Switch Night light on or off. Depending on the Windows build, the switch may appear under Brightness & color.
For a quicker toggle, select the taskbar’s Network or Speakers icon to open Quick Settings, then select Night light. The panel layout can differ by version and device, so use Display settings if you do not see the tile. Windows does not provide a universal dedicated keyboard shortcut for this feature.
Microsoft’s Windows display guidance covers the taskbar quick toggle.
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Adjust the warmth
- Open Settings → System → Display.
- Select Night light or Night light settings.
- Move the Strength slider. A lower setting gives a subtler tint; a higher setting makes the image noticeably warmer.
Try a moderate setting first, then adjust to preference. If whites look too orange or red, move Strength left or turn Night light off. Strength is not brightness: it changes color balance, not screen luminance.
Schedule Night light
- Open Settings → System → Display → Night light.
- Turn on Schedule night light.
- Choose Sunset to sunrise or Set hours. With custom hours, enter the start and end times you want.
Sunset scheduling depends on Windows having suitable time and location information. If the option is unavailable or does not switch when expected, check the PC’s date, time, and time zone, then use Set hours as a dependable fallback. To test a schedule, choose a start time a few minutes ahead and see whether the display changes. If the computer is asleep, shut down, or using an unusual display connection at the transition, behavior may vary; use the manual toggle if needed.
Microsoft’s instructions list both scheduling modes and the Night light controls.
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Windows 11 and Windows 10
The main route—Start → Settings → System → Display—is documented for both Windows 11 and Windows 10. Labels or layout details can vary between builds, but look for Night light on the Display page. Windows 10 may still have the feature, but Microsoft support for Windows 10 ended on October 14, 2025. The operating system no longer receives normal free security fixes, technical support, or software updates through Windows Update.
Fix Night light when it is missing or unavailable
Night light can be unavailable or grayed out when a display driver does not support it. Microsoft identifies DisplayLink and Basic Display drivers among possible limitations. Try this sequence:
- Right-click Start and open Device Manager.
- Expand Display adapters, right-click the listed adapter, and select Update driver.
- Follow the prompts and restart if requested, then check Settings → System → Display again.
- If the problem remains, obtain the appropriate graphics driver through Windows Update or the PC or GPU manufacturer. Avoid unrelated third-party driver-download sites.
If you use a dock or DisplayLink adapter, testing the built-in display or connecting a monitor directly can help isolate whether that display path is involved. This is a diagnostic test, not a guaranteed fix.
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Microsoft documents display-driver updating for display control problems.
Independent reader supportYour contribution helps us test, update, and keep practical guides available for everyone.Fix a red tint, oversaturated colors, or no visible change
If the screen looks too red or orange
First reduce Strength or switch Night light off. On HDR-capable devices, Microsoft warns that Night light can make colors appear oversaturated or red-tinted. To isolate the cause, turn Night light off and test HDR separately; avoid assuming that either setting is faulty until you compare them individually.
Microsoft’s HDR guidance describes possible oversaturation with Night light enabled.
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If Night light appears on but nothing changes
- Raise Strength temporarily, then toggle Night light off and on manually.
- Check that you are looking at the display affected by the setting.
- Disconnect a dock or external display and test the built-in screen, if available.
- If the PC supports HDR, turn HDR off temporarily and compare.
- Check whether the monitor has its own reading, blue-light, or color-temperature mode that may be affecting the image.
Behavior can vary with the graphics driver, connection, monitor, and HDR state. Not every external monitor or dock responds identically.
Night light, brightness, Dark mode, and HDR
| Setting | What it changes | Use it when |
|---|---|---|
| Night light | Warms the display’s color balance | The screen looks too cool at night |
| Brightness | Changes screen luminance | The display is too bright |
| Dark mode | Changes the appearance of supported Windows interfaces and apps | You prefer darker interface backgrounds |
| Color calibration | Aims to improve color accuracy | Color fidelity matters |
| HDR | Uses a supported PC, display, and content pipeline for a wider brightness and color range | You want HDR content and the full setup supports it |
These controls address different things. Night light is not Dark mode, a brightness control, or an HDR calibration tool. If a desktop monitor has no Windows brightness slider, use its physical controls; this is common with external displays. For HDR viewing or accurate color work, reduce or disable Night light if it distorts the image.
Microsoft notes that external-monitor brightness may need to be changed with the monitor’s controls. For more on HDR, see Microsoft’s HDR overview.
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