How to enable night shift mode and what exactly does it do?

Night shift mode was introduced with iOS9.3. It proposes to limit the blue light emitted by your device, to assist you in getting a good night’s sleep. According to an article on Harvard health “Blue wavelengths—which are beneficial during daylight hours because they boost attention, reaction times, and mood—seem to be the most disruptive at night. And the proliferation of electronics with screens, as well as energy-efficient lighting, is increasing our exposure to blue wavelengths, especially after sundown.”

Many studies have shown that exposure to bright blue light in the evening can affect your circadian rhythms and make it harder to fall asleep. Night Shift uses your iOS device’s clock and geolocation to determine when it’s sunset in your location, then it automatically shifts the colors in your display to the warmer end of the spectrum.1 In the morning, it returns the display to its regular settings. Pleasant dreams. – Apple Website

But does this Night Shift Mode help? Some are reporting it does, many are skeptical, but if you want to give it a try yourself here is how.

Night Shift Mode - iPhone
Night Shift Mode – iPhone
  • In the settings application, select Display and Brightness option.
  • Select Night Shift.
Night Shift Mode
Night Shift Mode
  • You now have two choices, either enable Night Shift Mode manually until tomorrow, or select a schedule.
  • If you select a schedule, you need to set a time, I have mine set from 10 pm to 7 am, which I find works well for me.
  • You additionally, have to option to reduce the color change intensity, increasing it more, may have an impact of the performance of onscreen motion.


John Ryan

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