Night shift not working with ios 10 update.

This worked for me just now. I have an iPhone 7 running latest iOS 10.3.3

For some reason Night Shift was confused. I simply did as you said.

1. Turn off Night Shift
2. Turn off Automatic Time Zone
3. Select a different time zone
4. Turn on Automatic Time again. Make sure the time zone detected correctly.
5. Turn on Night Shift.

Problem Fixed.

Thank you!!!

And I use iPhone 7plus

Hi there, stephaniefromsurrey,
I use Night Shift on my iPhone every night. I see that yours has stopped working after you upgraded your iPhone 6 to iOS 10. I'll be more than glad to help you get it working again.
Restart your iPhone, iPad, or iPod touch -- Never underestimate the power of a good restart. The forced restart also mentioned in that article won't apply to your situation though.
How to back up your iPhone, iPad, and iPod touch -- The next step to try shouldn't do anything but restore your iPhone settings back to their default settings. However, it's always better to "have" a backup than to "need" a backup.
Reset iPhone settings -- Go to Settings > General > Reset > Reset All Settings to return the settings back to default. Go to Settings > Display & Brightness > Night Shift. Adjust the settings to enable Night Shift again and test. If that hasn't fixed it, continue on.
If you didn't back up your iPhone before, now would be an excellent time as the next step is meant to erase your iPhone completely. I want to be sure your personal information is safe.
Use iTunes on your Mac or PC to restore your iPhone, iPad, or iPod to factory settings -- You'll need to use iTunes on a Mac or PC to completely erase your phone. Using your iPhone's settings only removes your personal information.
The first time through, select "Set up as a new iPhone" and skip signing into iTunes & App Store and iCloud this time around. Test Night Shift again. If all is working as it should now, continue onto the next step.
Restore your iPhone, iPad, or iPod touch from a backup -- Follow these instructions to place all of your personal information back on your phone.
Thanks for using Apple Support Communities!

i had this issue too. i remedied it in the following manner.

• disable night shift
• disable automatic set my time
• update my time zone
• enable automatic set my time
• enable night shift

That was enough to convince my iphone that 8:13 PM CST was when night shift should be on.

hope this works for you too!

Josh Peter's advice works.

Had the same problem with my brand new iphone 7+.

I had to restart after all the steps to make it work though

This worked for me and saved me from following the offical apple advice of resorting your phone. Thank you!

Regarding the night shift feature (and other problems), It seems that the standard apple response to a problem is reboot-restore, which is often overkill, when a simple or more common sense solution could be considered (such as turn off/on auto time setting and then turning on night shift again). Just a suggestion.