Do I need to set a different white balance to take pictures in the sun at noon in the morning and at night?

You're right. Theoretically, it needs to be set. If you need a very accurate color temperature for each photo, please set it manually.

Sometimes, for example, in the morning or at night, some photographers like to adjust the white balance, so that the photos they take will look good, depending on your personal preference! ~

The color temperature is high in the morning, and the film will turn blue.

At the end of the evening, the color temperature is red.