Night Shift (software)

Night Shift is a built in software feature of iOS and macOS. It was introduced in 2016-2017 into iOS in iOS 9.3 and into macOS in macOS Sierra 10.12.4.^[1] The feature changes the color temperature of the display towards the warmer part of the color spectrum^[2] that reduces some of the blue light from the screen.^[3] Apple claims that the feature may help users have a better night's sleep by filtering blue wavelengths from the display, which suppress melatonin biosynthesis.^[4] The feature is similar to the functionality f.lux provides.^[5]^[6]

^ Keller, Joseph (April 18, 2018). "How to use Night Shift on your Mac". iMore. Retrieved 2018-06-18.
^ Ritchie, Rene (March 5, 2018). "How to use Night Shift on your iPhone or iPad". iMore. Retrieved 2023-03-20.
^ "Can Apple's color-shifting screen really help you fall asleep faster?". The Verge. 2016-03-29. Retrieved 2017-04-29.
^ "iOS 9.3: The new Night Shift feature probably won't help you sleep better". Macworld. Retrieved 2017-04-29.
^ Bell, Karissa (15 January 2016). "F.lux creators ask Apple to open Night Shift features to developers". Mashable. Retrieved 2017-04-29.
^ Bell, Karissa (21 March 2016). "How to use Apple's new Night Shift feature in iOS 9.3". Mashable. Retrieved 2017-05-20.

[1] Keller, Joseph (April 18, 2018). "How to use Night Shift on your Mac". iMore. Retrieved 2018-06-18.

[:0-2] Ritchie, Rene (March 5, 2018). "How to use Night Shift on your iPhone or iPad". iMore. Retrieved 2023-03-20.

[3] "Can Apple's color-shifting screen really help you fall asleep faster?". The Verge. 2016-03-29. Retrieved 2017-04-29.

[4] "iOS 9.3: The new Night Shift feature probably won't help you sleep better". Macworld. Retrieved 2017-04-29.

[5] Bell, Karissa (15 January 2016). "F.lux creators ask Apple to open Night Shift features to developers". Mashable. Retrieved 2017-04-29.

[6] Bell, Karissa (21 March 2016). "How to use Apple's new Night Shift feature in iOS 9.3". Mashable. Retrieved 2017-05-20.

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