Have you ever been so focused on something, you didn’t realize that it got dark outside or that it was late at night? If you have trouble keeping track of time, you can set Night mode to automatically turn on or off at a set time. Navigate to and open Settings, and then search for and select Night mode. Touch Night mode again, and then touch the slider next to Turn on as scheduled. Choose Sunset to sunrise to make night mode automatically turn on in the evening and turn off in the morning.