In this article, we present programs with which you can change the color temperature and brightness of your screen depending on sunlight so that your screen automatically adapts to the time of day for a better viewing experience.

These platforms also provide tools to care for your eyes through automatic screen brightness adjustment.

Iris Lite

We start with Iris Lite, a utility that automatically changes the brightness of your screen based on the time of day. At night, brightness is reduced so your eyes don't have to strain. The platform's interface allows you to adjust both brightness and color temperature using a bar at the bottom of the desktop.

Iris Lite is a free program available for Windows, Mac OS X, Linux, iOS, and Android.

Programs That Change Screen Brightness and Color Temperature Based on the Time of Day
Helps take care of your eyes

F.lux

Continuing with F.lux, a program that changes the screen's color temperature based on the time of day. The interface shows a graph with the Sun's position and indicates the temperature it will apply to the screen.

F.lux is a free program available for Windows, Mac OS X, iOS, and Android.

Programs That Change Screen Brightness and Color Temperature Based on the Time of Day
Color temperature is measured in Kelvin degrees

RedShiftGUI

With RedShiftGUI, you can only adjust the color temperature as the day passes. Brightness can only be changed manually. The tool shows the Sun's position from a top-down view so you can get an idea of how the screen's color temperature will change.

RedShiftGUI is a free program available for Windows.

Programs That Change Screen Brightness and Color Temperature Based on the Time of Day
Brightness is changed manually

SunsetScreen

SunsetScreen is a more robust program with more options so that your screen automatically adapts to the Sun's position.

The environment offers two options to set both color temperature and brightness for day and night. You only need to enter the times of sunrise and sunset.

SunsetScreen is a free program available for Windows. (It offers a free version.)

Programs That Change Screen Brightness and Color Temperature Based on the Time of Day
It has more features than the other options

desktop lighter

We finish with desktop lighter, a program that works with the Windows Task Scheduler. You only need to specify the frequency, periodicity, and time of the task in the Windows Task Scheduler file, and the next time you start your computer, the changes will be applied.

desktop lighter is a free program available for Windows.

Programs That Change Screen Brightness and Color Temperature Based on the Time of Day
Very simple interface

We hope that with these programs to automatically change your screen brightness you can take care of your eyes.