Screen Shot 2015-12-15 at 5.52.35 PMGoogle today has announced an update to its Google Play Books app on Android and iOS that brings with it a new feature called “Night Light.” The update is available now and bumps the app to version 3.7.45 on Android.

Night Light is a feature that Google says will significantly improve the comfort of reading late at night in darker environments. Google says it has noticed that reading activity peaks between 8PM and 10PM local time, meaning that a lot of people are reading right before they go to bed and it’s not good for your eyes to stare at a bright white screen right before going to sleep.

Night Light, once enabled, will automatically adapt the color of the page based on the amount of natural sunlight, giving you the perfect temperature and brightness for enjoyable reading. The feature works by gradually filtering blue light from your screen and replacing it with a warm, amber light as the sun sets:

Today we’re introducing Night Light, a new feature that makes night time reading more enjoyable and easier on the eyes. When turned on, Night Light gradually filters blue light from your screen, replacing it with a warm, amber light as the sun sets. Night Light automatically adapts to the amount of natural sunlight outside based on the time of day, giving you just the right temperature and brightness. The color adjustment is more comfortable on your eyes and greatly improves low-light night reading.

The update is available now on the Play Store for free.

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Chance Miller


Chance currently writes for both 9to5Google and 9to5Mac, in addition to 9to5Toys.