How to Convert PPT to Video with Movavi PowerPoint to Video Converter.If at any factor you decide that your Mac’s display screen is making you sense worn-out or straining your eyes, you fancy a nap in a chunk and many others you could turn on Night Shift mode manually. Night Shift becomes a part of the Sierra replacing, so you’ll want to be walking that or a later version of macOS. In this article, we explain how to use Night Shift at the Mac. Night Shift was first made available on iPhone and iPad as a part of the iOS 9.3 replacement, but it is added to macOS. It’s believed that cooler (bluer) artificial light from a display screen can affect someone’s circadian rhythms and disturb their sleep, and Night Shift is designed to prevent this from going on. Night Shift is an optional characteristic of Great News Networkthat warms up the color palette of a device’s display, specifically late in the day.