To enable dark mode, you usually just need to switch your device or app’s appearance/theme from “Light” to “Dark” in its settings. Most phones, computers, and popular apps now support this and can even schedule it automatically at night.

What dark mode does

  • Uses darker backgrounds with light text to reduce glare, especially in low light.
  • Can feel easier on the eyes and may slightly reduce battery use on OLED screens.

How to enable it on phones

  • On many phones, go to Settings → Display (or “Display & Brightness”) → choose Dark or “Dark theme”.
  • Some systems let you turn it on from quick toggles in the control center or notification shade for faster switching.

Extra options you might see

  • “Automatic” or “Schedule” to switch between light and dark mode at sunset/sunrise or at custom times.
  • Per‑app dark mode switches if the app has its own theme settings separate from the system theme.

If you share which device or app you are using (Android, iPhone, Windows, macOS, a specific app, etc.), a more step‑by‑step guide can be tailored to that. Information gathered from public forums or data available on the internet and portrayed here.