Click on the Night Shift tab to change settings.F.lux is still available if you’d prefer to use it or are not ready to upgrade yet to macOS 10.12.4. Night Shift is similar in concept to the third-party application f.lux. But for the rest of us, Night Shift can give your eyes – and your circadian rhythm – a bit of a break. If you’re working with graphics, art, photography, video or other content where color fidelity is of paramount importance, Night Shift is probably not the best thing to use. In the morning the Mac returns to its normal settings. Night Shift mode – first introduced in iOS 9.3 – changes display colors to warmer tones with less blue. According to some research, exposure to the bright blue light of computer displays in the evening can affect your ability to sleep. Night Shift adjusts the color of your Mac’s display after sunset. They’ve buried the feature, though, so it can be a bit tough to find. Among the new features is Night Shift, the same screen-dimming technology that Apple has had in iOS for a while. However, if, on the other hand, you read articles the same setting can work much better.Apple on Monday released macOS 10.12.4, the latest version of its Sierra operating system. For instance, if you watch videos on it before bed you might find that moving it closer to the 'More Warm' end will ruin how they look. You may want to play with this slider to find a setting that best suits how you use your Mac. It defaults in the middle, but you can move it to the left to show fewer warm colors (that are closer to the default display mode) or to the right for warmer colors. Last, but not least, Night Shift also lets you use a slider to set how warm you want the colors to be. Apple does not provide an answer, but there is an option in macOS Sierra to adjust the time and date depending on your location, which explains how the new feature sets the respective times.)

(You may wonder how Night Shift knows when sunset and sunrise occur. If you use a custom schedule the same option is available, but if you scheduled it to work between sunset to sunrise then you get the option to activate it manually until sunrise.

If the default Schedule option is 'Off' then you can select 'Turn On Until Tomorrow' as the manual option. The third and final option is to enable Night Shift manually. Both options can be found in the Schedule drop-down menu. Second, you can choose a custom time interval, that applies to every day of the week. First, and the most convenient option, is to have it turn on automatically between sunset and sunrise. You can take advantage of Night Shift in one of three ways. So, how do you enable Night Shift? The new feature, which made its debut on macOS Sierra 10.12.4, is part of the Displays menu under System Preferences once there, switch to the Night Shift tab to choose how you want it to work.

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