Windows Night Light is one of those settings that seems minor until you use it for a week and your eyes stop feeling fried by bedtime. It shifts your screen away from harsh blue tones toward warmer ones after dark, which is easier to look at and, for a lot of people, easier on sleep. It’s built into Windows, free, and takes about a minute to set up the right way. Here’s how.

Turning on Windows Night Light
Head to Settings, then System, then Display. You’ll see a Night Light toggle near the top. Flip it on and your screen warms immediately. Click into its settings and you get a strength slider — drag it to taste. Some people like a gentle shift; others go strongly amber at night. There’s no wrong answer, so nudge it until the screen looks comfortable rather than orange for its own sake.
Schedule Windows Night Light so it’s automatic
The real win is scheduling. In the Night Light settings, turn on “Schedule night light” and pick either sunset-to-sunrise (Windows uses your location) or set custom hours. I like custom — on at 8 p.m., off at 7 a.m. — so it never surprises me mid-afternoon. Once it’s scheduled, you forget it exists, and that’s the point. The screen simply warms up each evening without you touching a thing.
If sunset-to-sunrise gives you a location error, either enable location services or just switch to a manual time window. Manual hours are more predictable anyway and don’t depend on your PC knowing where it is.
Dark mode is the perfect companion
Night Light changes color temperature; dark mode changes how bright the interface is. Together they’re far gentler at night than either alone. Turn on dark mode under Settings, Personalization, Colors, and choose “Dark” for both Windows and apps. Suddenly menus, File Explorer, and settings stop blasting white light at you in a dim room. Many apps like your browser and Office follow the system setting automatically.
For more ways to make your PC pleasant and fast, check the guides on our homepage. If your machine also feels sluggish, our post on speeding up a slow Windows PC pairs well with a cleaner evening setup.
Fine-tuning for comfort
Don’t crank the warmth so high that photos and videos look wrong — you can always turn it up for reading and down for anything color-critical. If you edit images or watch films at night, keep a lighter setting or toggle Night Light off for those sessions. And remember it only affects the built-in schedule window, so daytime work stays crisp and true to color.
Microsoft explains the full range of display options on its Night Light support page, and reviewers at How-To Geek cover the tweaks worth trying.
Make Windows Night Light a habit
Windows Night Light costs nothing and asks nothing once it’s scheduled — it just quietly makes late-night screen time easier on your eyes. Set the strength, pick your hours, add dark mode, and forget about it. In a few days the warmer evening screen will feel normal, and switching back to cold blue light after dark will feel harsh by comparison. That’s the sign it’s working.