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Starting with the launch of iOS 9.3, newer Apple devices have gained a feature called Night Shift, which changes the color tones of your iPhone or iPad display to a warmer hue. In this video, AppleInsider goes hands on with the handy new addition.
The reason for this is backed by actual science: research has shown that lights with blue-ish hues help to keep you awake at night by suppressing the production of melatonin. By shifting to a color tone with more yellow and red, Night Shift can actually help you get a better night's sleep.
Manually turning Night Shift on or off on a device running iOS 9.3 is simple enough: Swipe up from the bottom of the screen to invoke Control Center, and you'll find a new Night Shift quick access button at the bottom, right in between access to the timer and calculator.
Power users may want more advanced control of Night Shift, however, and Apple has thankfully included customization options in iOS 9.3. Simply open the Settings app and choose "Display & Brightness," where the new Night Shift menu can be found. From there, users can schedule it to run at certain times, just like with Apple's Do Not Disturb feature.
The automated scheduling for Night Shift also allows users to have it turn on by default at sunset, and turn off when the sun rises. This uses localized sunrise and sunset times based on the user's location and time zone.
Apple also gives the ability to adjust the color temperature to a user's liking. With a slider setting, the display colors can be made more or less warm.
Night Shift is available on the iPhone 5s or later, iPad Pro, iPad Air or later, iPad mini 2 or later, and the sixth-generation iPod touch.
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