How to Enable Night Shift in macOS 10.12.4

The latest release of macOS 10.12.4 has brought the iOS feature Night Shift. As you will most probably be aware this function shifts the colours on your display to the warmer end of the colour spectrum after dark which should reduce eye strain and mean you get a better nights sleep.

If you have used flux before you will know exactly how this works. This is very basic and unlike flux you can't set it to gradually change colours it just happens immediately and the reduction of blue colours is not as great as the hours go by but it does the job.

If you have external monitors attached to your Mac then only the monitor that is marked as Primary will

To Enable Night Shift in macOS:

  • Open System Preferences
  • Select Displays

  • Select Night Shift

  • You will now see the following

  • If you select the Schedule Dropdown Box you will see there are 3 options: Off, Custom, Sunset to Sunrise all of which are self explanatory

  • Select Custom and then choose which hours you want Night Shift to activate.

  • You can also manually enable Night Shift and enabling it via this way will turn it on until the next day

  • You can set the colour temperature to your liking. Each time you make changes to this the screen will change to show you just how the screen will look when activated so you can judge where you want it set

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