Does Yosemite (or El Capitan) have the "Night Shift" feature that iOS has?

If not, is it planned? Are there alternatives? If so what?

MacBook Pro, OS X Yosemite (10.10.5), Retina (4th Logic Board)

Posted on Apr 29, 2016 11:15 AM

Reply
16 replies

Apr 29, 2016 12:04 PM in response to stevejobsfan0123

This kind of product would be unlikely to follow the exact percentages of

local daylight, in the process of cycling the night screen brightness; some

of us who live where the actual daylight change is great from between

December 21st and June 21st then back again, may find it a novelty.


In a computer with automatically dimming keyboard, (portable) it could

be useful, if the bright or dim could relate to local ambient light sources.


{In the farther north, we see gains of up to 5 minutes a day or similar loss.}


Perhaps good if you ignore the outdoor world and hope to keep

an internal clock somewhat on target; and not use a sundial...! 😉

Apr 30, 2016 8:00 AM in response to K Shaffer

On iPhone and iPad it automatically sync's to the sunset and sunrise times. This would not have been hard to do from a development standpoint, sunset and sunrise times are published in many places. It also does more than just dim, all Apple devices have had auto-britness adjust for years. It changes the color temperature to mirror what early morning and late afternoon sunlight looks like. It works great on iPhone and iPad, it's a wonderful feature.

Apr 30, 2016 11:27 AM in response to brsm1990

From the aspect of supporting limited population areas with radically changing

amounts of daylight (per day, annually) the idea could be implemented yet I

doubt they'd actually roll-out a version based on US postal or region codes for

the sake of a few hundred users.


While I read about the feature and you've explained in a highlighted way what

amounts to the same thing in an over-view, I'd be surprised if the item would

actually work accurately using the US Naval Observatory Database (aligned

with local time zones or actual daylight; which is two hours different in summer)

for places like Alaska. Without an active local sensor in the device itself.


Here, we see a gain of time equaling up to a few hours a month, then a loss

of actual daylight; so this 'feature' would be a curiosity; like an automatic volume

control in an automobile, that turns up or down if the windows are open, etc.


In the course of ten days or so, we see an actual gain of about an hour, over

many weeks from December 21 through June 22, then a loss until Dec 21...

Winter daylight is under 6 hours, say in Anchorage; summer daylight is 19hr 20m.


Sounds like a nice toy, one that should be related to as such, IMHO. 😝

Apr 30, 2016 1:48 PM in response to K Shaffer

What in the world are you talking about?


FIrst, accurate location based sunrise and sunset times are available even in the weather app since years ago.


Second, the feature were talking about already exists on iPad and iPhone and it works perfectly.


Third, if for some unknown reason you don't believe Apple cqn automatically determine your sunrise and sunset times, you can manuall schedule the feature.


Fourth, in order for this feature to be beneficial it doesn't have to be perfectly synced to sunrise and sunset, it's fine just to approximate and have warmer color tones later in the day and at night rather than cool tones.


Your post doesnt make any sense.

May 1, 2016 2:40 AM in response to brsm1990

Why do you think you need to relate an iDevice to the actual outdoor lumination?


Here, if you do that, the solar day varies way too much and so it wouldn't matter

anyway. The illogical consequence is near total nonsense from real world outdoor

daylight factor. Unless the device has a sensor, such as backlit keyboards do, for

proximity ambient illumination, the pragmatic user would simply set the display at

a low output to save the battery anyway. Sounds more like fad or fashion, instead.


...If I need to be amused or entertained, without paying more, I could begin by laughing now...


Your post doesn't make any sense. 😉

May 1, 2016 4:06 AM in response to K Shaffer

It is not just the light intensities it's the color temperature of the light output. All Apple devices have sensors for auto brightness adjustment and they have had them for a long time and they work well.


Of course a device can sync to the outdoor daylight as long as it knows when sunset and sunrise is. It can, it does and it works on iPad and iPhone... can't you read?


Besides the fact that this feature will work just as well in Alaska as it does anywhere else, even if it didn't, the vast majority of the world's population does not live somewhere where the daylight hours vary so much.


Here is a brief technical explanation: http://www.extremetech.com/extreme/226127-night-shift-how-blue-light-impacts-sle ep-and-what-companies-like-apple-can-do-about-it


<Edited by Host>

May 1, 2016 3:22 AM in response to brsm1990

For the Mac, one could get the https://justgetflux.com/ app and see if that means anything;

and part of my comment was about the feature of controlling color and brightness in Macs.


Since I've owned (repaired, restored, personally donated) over 400 Macs to various persons

and charity thrift stores, the vanity illumination was never a critical factor... Some people use

a bright screen as a means to help alleviate S.A.D. while others wear some shades and turn

on a full-spectrum or grow light to get their bio-rhythms going. And put a timer on their lamp

to get awakened when there's only 3 hours of daylight outdoors, etc.


{The LED lighting can be odd colors, mostly vehicle headlights that mess with eyes at night.}


Glad to see you are awake. At this hour (2:22 AM local time) I shouldn't be. Not for this... 😉

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Does Yosemite (or El Capitan) have the "Night Shift" feature that iOS has?

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