How To Enable Dark Mode And Night Shift In iOS MacOS Apple TV Dim the colours on your Mac, iPad and iPhone for better nighttime viewing, With Dark Mode on Mac and Apple TV, and Time Shift on the iPad and iPhone you can reduce eye strain and improve your nighttime viewing experience, heres how this is how to go about it with ease. Apple brought Night Shift, which reduced the level of blue light being emitted by the iPad and iPhone, to iOS 9.3 and it�s a feature rumoured to be coming to MacOS soon. The colour-shifting technology reduces the blue light that is emitted from the iPad and iPhone screen - and when it comes to macOS the Mac screen. This blue light is said to keep us awake and cause eye-strain and headaches. The Night Shift technology reduces this blue light, making the screen colours appear warmer and more yellowy. Night Shift is thought to help those suffering from insomnia because the blue light affects our circadian rhythms. It�s why we generally sleep at night and stay awa...