How to turn off blue light on iPhone using Night Shift

TC Ensina: como ativar o Night Shift no iPhone e iPad

Use Night Shift on your iPhone, iPad, and iPod touch - Apple Support

How to quickly turn on Night Shift on iOS (and reduce that gnarly blue light)

How to use Night Shift in iOS 9.3: sunset/sunrise schedules, colour temperature and low power mode

Do your eyes (and sleep pattern) a favour and turn on 'Night Shift' on your iPad and iPhone - iTandCoffee

This Is How You Will Use 'Night Shift' On The iPhone and iPad

How to Activate Night Shift from Control Center in iOS 11

This iPhone Trick Will Instantly Give You a Better Night's Sleep

How to sleep better using iOS Night Shift

I tried using the new function Night Shift of iOS 9.3 which cuts the blue light at night by changing the screen color of iPhone to warm color system - GIGAZINE