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Settingly

Display and appearance

Night Shift

Most people call this the warm yellow screen in the evening.

Night Shift shifts the display towards warmer colours on a schedule, usually from sunset to sunrise.

Available

This setting is present on your iPhone.

  • We have this path on file but have not yet confirmed it against an official source.

Where to find it - iOS 9 and later

  1. Settings
  2. Display & Brightness
  3. Night Shift

What it does

It reduces the blue component of the display's white point. You can set a fixed schedule, follow sunset and sunrise, or turn it on manually until tomorrow, and you can choose how warm it goes.

What changes

When it is on

Colours warm up during the scheduled hours. Photo and video editing becomes unreliable.

When it is off

The display keeps its normal white point at all hours.

Should you turn it on?

Good reasons to turn it on

  • A warmer screen is easier on the eyes in a dark room.
  • It marks the end of the day without you having to think about it.

Good reasons to turn it off

  • Colour accuracy matters for editing photos or choosing colours.
  • You find the shift more distracting than helpful.

Battery

No real change

Privacy

No real change

Performance

No real change

Cellular data

No real change

Storage

No real change

Out of the box: Off until you enable it, then it follows the schedule you choose.

Questions people actually ask

Why is my iPhone screen yellow?
Night Shift or True Tone, usually. Turn each off in turn to see which one it is.
Does Night Shift help you sleep?
It reduces blue light, though the evidence that this improves sleep is mixed. Many people simply find it more comfortable.

If it is not working

  • A yellow screen can also be True Tone reacting to warm room lighting, which is a different setting.
  • Sunset to sunrise needs Location Services to know when sunset is.
  • Colour Filters can also tint the display and is under Accessibility.

Related settings