There are many ways to adjust the display for low light and night time situations on iPhone. Night Shift can automatically dial down blue light starting at sunset, which helps to reduce interference with the body's natural sleep and wake cycle. Other ways to lower the brightness of the iPhone screen include brightness in the Control Center, Dark Mode in apps, and Reduce White Point under Accessibility.
Night Shift makes it possible for iPhone owners to warm the color of their displays at night. Some iOS users prefer to manually switch on this feature, which is designed to help improve sleep and match warm evening hues after the sun has set. Night Shift can also be invoked automatically, either on a timed schedule or based on the local sunset time. But what happens if the Sunset to Sunrise schedule option is missing from Night Shift settings?
There are three ways to enable Night Shift on your device (iOS 11 and later):
- Swipe up on your Home screen to open Control Center. Perform a hard press on the brightness slider. Select the Night Shift option.
- Navigate to Settings > Display & Brightness > Night Shift then tap "Manually Enable Until Tomorrow."
- Navigate to Settings > Display & Brightness > Night Shift and select the "Scheduled" option to schedule a time for Night Shift to automatically enable itself.
Great news for Twitter fans who enjoy reading the latest tweets after dark. The official Twitter app has received a built-in night mode. When enabled, this mode reverses text and background colors to enhance reading in low-light situations. While the feature is simple, it does the trick efficiently. Images are not altered, and night mode cannot be invoked automatically or on a schedule.
Night Shift, first introduced with iOS 9.3 is limited to devices with 64-bit processors. This means that on some older Apple hardware Night Shift is not supported.