Outdoors people need to keep track of daylight. Pilots need to know when to turn on lights and log night flying.

Civil Twilight for Watch finds your location, and calculates the sun position without going out on the internet like the other apps. Anywhere in the world! In your plane, on your boat, out on a hike! This is self-contained on the Watch and doesn't need the phone nearby either! Accurate to about a minute through the year 2050. For many more features, including sun rise and set times for other dates and places, check out our iOS app "Civil Twilight Calculator" on the App Store.

Complications fully supported. There is now a Setting View to select which time to display in complications. Swipe left to change this Setting. As space inside different complications allows, some complications have both rise and set times and even a sun arc for daylight! Small complications allow a single user-selected time, like "C up arrow" for next Civil Sun Rise.

This App is for Apple Watch Series 3 and later!

What’s New

Version 1.3

Fixed a bug where new users had trouble enabling GPS in iOS13 while updaters had no trouble.
!! Remember to "Allow GPS Access While Using" on iOS Companion App !!
Added Help screen and FAA regulations about night times to the iOS companion app
Improved UI on watch
More reliable complication updates after changing location, or type of sun rise/set

Ratings and Reviews

3.0 out of 5
2 Ratings

2 Ratings


Can't work as written

The developer and I have had a long discussion via the reviews in the watch store, and the developer refuses to even acknowledge that there is a problem. I've given the app the necessary permissions for GPS and the GPS still doesn't work. And without the GPS, this app can't work - by the developers own admission. The developers only response is that my review is unreasonable. But is it unreasonable to expect an app that you paid for to work? The app doesn't work; and it's never going to work until the developer fixes the permissions problem. But the developer is convinced there is nothing wrong, so that is never going to happen. Don't waste your money, there are other apps available for Civil Twilight times that actually work.

Developer Response ,

The facts are: this App has hundreds of customers and only 19 returns. About average for watch apps. The only thing you need to turn the GPS on is to run the companion App on the paired phone and allow "When in Use". You can easily check the permission on the phone in Setting/Privacy/Location. The watch app name there is Twilight, to distinguish it from the iOS version of the app. Simple, unless you prefer not to read directions, follow advice or just want to write 5 versions of nasty, long, personal attacks on the developer, all for a 99 cent app. My best advise for you is just get a refund.

dave0352 ,

I love a good food fight

I needed an easy source for these times out in the field. I looked at the screen shots. This does exactly what I need, so I sprang for the 99 cents. It works perfectly as advertised. Just run the phone app first to enable location permissions.

App Privacy

The developer, Aviametrix, LLC, has not provided details about its privacy practices and handling of data to Apple. For more information, see the developer's privacy policy.

No Details Provided

The developer will be required to provide privacy details when they submit their next app update.


Aviametrix, LLC
7 MB

Requires iOS 13.4 and watchOS 6.0 or later. Compatible with iPhone, iPad, and iPod touch.



Age Rating


  • Family Sharing

    With Family Sharing set up, up to six family members can use this app.

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