How to Turn On Dark Mode on Your Phone: A Simple Guide

Dark mode swaps the bright white backgrounds on your phone for deep blacks and grays, with light-colored text sitting on top. Many people find it easier on the eyes, especially at night, and it can even help your battery last a little longer on some phones. If you have ever wanted to turn on dark mode but were not sure where to look, this simple guide will walk you through it on both iPhone and Android.

The good news is that you can turn on dark mode in just a few taps, and you can switch back just as easily. You can even set it to change automatically at sunset. Once you see how much calmer your screen looks in the evening, you may never go back. Let us start with why so many people choose to turn on dark mode in the first place.

Why People Turn On Dark Mode

The most common reason people turn on dark mode is comfort. A bright white screen in a dim room can feel harsh and make it harder to fall asleep afterward. A darker screen gives off less light, so it is gentler when you are reading in bed or scrolling late at night. Many users simply prefer how sleek and modern the darker look feels.

There is also a practical benefit. Phones with OLED screens can save a little power when they display black pixels, because those pixels are essentially switched off. So if you want to squeeze out extra battery life, dark mode can help alongside other tricks. Our guide on how to How to Save Battery on Android covers even more ways to keep your phone running longer.

Some people also find dark mode helpful for reducing eye strain during long stretches of screen time. While the science on this is still mixed, plenty of users report that their eyes feel less tired at the end of a long evening. It is an easy change to try, and since switching back takes only a second, there is no harm in seeing whether it suits you.

How to Turn On Dark Mode on iPhone

On an iPhone, open the Settings app and tap “Display & Brightness.” At the top you will see two options: Light and Dark. Tap “Dark” and your whole phone switches instantly. To turn on dark mode automatically, flip the “Automatic” switch just below, and your phone will change to the dark theme at sunset and back to light in the morning.

You can also add a quick toggle to your Control Center so you do not have to dig through settings each time. Once it is there, you swipe down from the corner, press and hold the brightness slider, and tap the dark mode button. It is the fastest way to turn on dark mode whenever the room gets dim.

One thing to note is that dark mode changes the look of your phone’s menus and supported apps, but it will not darken every single screen. Photos, videos, and web pages that use their own colors stay the same. That is completely normal and nothing to worry about, since those items are meant to keep their original appearance.

• Open Settings and tap Display & Brightness
• Choose Dark to switch instantly
• Turn on Automatic to change at sunset
• Add a Control Center toggle for quick access

How to Turn On Dark Mode on Android

On most Android phones, you open Settings and tap “Display.” Look for “Dark theme” or “Dark mode” and switch it on. Depending on your brand, you may also find a schedule option so the phone can turn on dark mode at a set time or from sunset to sunrise. Samsung, Google Pixel, and other brands all place this in a slightly different spot, but the wording is similar.

Android also puts a handy shortcut in the quick settings panel you pull down from the top of the screen. Tap the “Dark theme” tile and the whole system flips over. This makes it effortless to switch themes for a quick evening reading session and switch back the next morning.

If you cannot find the setting on your particular phone, use the search bar at the top of the Settings app and type the word “dark.” Almost every Android phone includes this search feature, and it will take you straight to the right screen no matter how the menus are arranged on your device.

Dark Mode in Individual Apps

Turning on the system-wide setting changes most menus and built-in screens, but some apps have their own separate switch. Apps like your browser, email, and social media often include a dark theme in their own settings. If an app still looks bright after you change the system setting, dig into that app’s own display options to match it.

Keeping your apps updated helps here, since older versions may not support the darker theme at all. If you are not sure how to keep them current, our guide on how to How to Update Apps on Your Phone makes the process quick and painless so every app matches your chosen look.

Tips for Getting the Most From Dark Mode

Once you turn on dark mode, spend a minute adjusting your brightness too. A darker theme paired with a slightly lower brightness is the most comfortable combination for nighttime use. Many phones also offer a warmer “night” color filter that reduces blue light, which pairs perfectly with the dark theme. For the quietest possible evenings, you can also learn how to How to Use Do Not Disturb so notifications stop lighting up your screen.

If you read a lot of documents or web pages, notice which ones still force a white background and look for a reading mode inside those apps. For the official steps and the latest options on Apple devices, you can check Apple’s Dark Mode support page, which stays current with each new update.

Quick Recap

To turn on dark mode, open your phone’s Settings, find the Display section, and choose the dark theme. On iPhone it lives under Display & Brightness, and on Android under Display or Dark theme. You can schedule it to switch automatically at sunset, add a quick toggle, and adjust individual apps to match. With these steps, you can turn on dark mode and enjoy a calmer, easier-on-the-eyes screen day or night.