Why does the screen appear yellowish or have a lower color temperature at night when the Xiaomi 15 Ultra is in Cycle reading mode?

The Cycle reading mode is designed to enhance the viewing experience by dynamically adjusting the screen color temperature to suit different scenarios, thereby extending usage time. If you wish to further adjust the screen color temperature or fix screen at a specific color temperature, you can switch to the Classic reading mode and customize the color temperature settings.
For your reference, here are more details about Cycle reading mode:
1. Cycle reading mode can intelligently adjust screen parameters according to sunrise and sunset times and application types to relieve eye fatigue;
2. This mode works by dynamically altering the screen’s brightness, contrast, and color temperature throughout the day to match natural light conditions;
3. By customizing the screen settings based on both the time of day and the app being used, Cycle reading mode helps reduce eye fatigue and provides a more comfortable, personalized viewing experience.