This article explains how to use Night Mode and Blue Light Filter on Samsung phones manually or by setting a custom schedule for both features.
Samsung Galaxy Ultra Tutorial – Night Photography Settings Explained | Low Light Test
If you have a Samsung phone, you have two ways to make your phone easier to read at night: Samsung Night Mode and Samsung Blue Light Filter. Both are easily enabled in the Quick Settings menu. You can also set Night Mode to open automatically in Settings.
Open Settings > Display.
Tap the Night Mode switch on the right to turn Night Mode on or off.
