Solar Eclipse Timer

In-app purchases
4.6
793 reviews
50K+
Downloads
Content rating
Everyone
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About this app

The Solar Eclipse Timer app was developed by me, an expert eclipse chaser, to help people get the most enjoyment out of observing and photographing a total solar eclipse.

#1 ECLIPSE TIMING APP
It was the #1 eclipse timing app used during the 2017 total solar eclipse that crossed the United States. It was then used successfully in Chile and Argentina during the 2019 solar eclipse.

It was featured in Sky and Telescope Magazine in 2002, 2003 and 2017. Fred Espenak, Mr. Eclipse, used the app in 2017 and he recommended it on his blog. It’s been used by Destin Sandlin of the YouTube channel Smarter Every Day for his two eclipses, 2017 and 2019, and he recommends the app. From Space.com, Elizabeth Howell, gave it a positive review. Over 630 positive comments were posted after the 2017 eclipse.
The unique feature of the app is that it will automatically calculate your exact contact times when you are at your final observing position. Then, I become your personal eclipse astronomer, because though the app I will talk you through the eclipse! It is so easy to use! Basically a “Two Tap Setup”. Get into the path; 1 Tap to Geolocate. 2. Tap to Load the Contact Times. That’s it! You are now timing the eclipse!

FREE DOWNLOAD

The app is a FREE download to try it out. It then has in-app purchases to BUY the eclipse data set that you want to time. It is ready for 2020, 2021, 2023 and 2024.

The FREE download allows you to play with the app, see its features and realize its benefits for you on Eclipse Day. Watch a built-in app tutorial that explains all of the functions of the app.

WORKS IN REMOTE LOCATIONS
Solar Eclipse Timer will work anywhere. The app does its calculations internally. It does not require cell service or an internet connection to work. It only requires a GPS signal, or manually entering GPS coordinates for the calculations to occur.

OTHER BENEFITS AND FEATURES
Eclipse Education - When you use Solar Eclipse Timer, it is one part of my three-part program of eclipse education and preparation. This app is coordinated with my Solar Eclipse Timer YouTube channel and my Solar Eclipse Timer website. There is no other place in the world to get such a comprehensive eclipse preparation package! It’s like having me as your person solar eclipse coach.

Partial Eclipse Timing Mode - It can also time the eclipse as a partial eclipse if you are not in the path of totality. It displays your maximum percent coverage and then continuously displays the progress of the eclipse. The announcements are altered to be appropriate for your maximum eclipse percentage.

Extensive Help File – The Help File is a comprehensive guide not only to using the app but to learning about eclipses. Within the help file text are external hyperlinks to my YouTube channel videos about eclipse subjects. There are over 3 hours of custom eclipse video content including some of my original research on my YouTube channel.

This App Is Ad Free!

ALWAYS USE EYE PROTECTION DURING THE PARTIAL PHASES OF A SOLAR ECLIPSE! OR EVEN WHEN IT IS BRIGHT! NOT DOING SO CAN CAUSE EYE DAMAGE!

We are NOT liable for misuse of the app causing inaccurate timing or the lack of eye safety precautions during the observation of a solar eclipse.

The "glasses off" and "glasses on" statements are a guide based on the calculated contact times. The timing can be affected by your phone's clock and the shape of the shadow due to the edge of the lunar limb. Lunar limb adjustment times for every point on the path are available on the internet. You are responsible for the timing so use the Adjust buttons as necessary. Glasses should be ON if it's bright!
Updated on
Dec 30, 2019

Data safety

Safety starts with understanding how developers collect and share your data. Data privacy and security practices may vary based on your use, region, and age. The developer provided this information and may update it over time.
No data shared with third parties
Learn more about how developers declare sharing
No data collected
Learn more about how developers declare collection
4.6
793 reviews
iflyme
August 2, 2022
Amazing app! Used it before and during the 2017 eclipse. It was extremely helpful with scouting our viewing site as well as with narrating all phases of the event perfectly. Our experience viewing that eclipse could not have been better, and I give this app a lot of the credit.
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Foxwood Astronomy
August 2, 2022
iflyme, thank you for the 5-Star rating and your great comment! The newest version of the app is ready for 2024! Please go to the Google Book Store and look at my new eclipse ebook. A new concept in eclipse book organization. It's multimedia and the most comprehensive eclipse prep book available. Search the title - Eclipse Day 2024 and More.
A Google user
July 9, 2019
A great app! Must have for anyone watching a total solar eclipse. Contains useful reminders for what to do (i.e. observe for shadow bands, remove camera filters, observe for planets and stars, observe the horizon, etc) and more importantly, when to do it. Time in totality is rare and precious and there's a lot to do in a very short period of time, and these reminders will make sure you don't forget to do something you should do! During the 2017 eclipse, I didn't have this app, and I literally forgot to observe for planets and stars (even though I did capture them in my photos) and I also forgot to observe the horizon. I also didn't look for shadow bands. During the 2019 eclipse, I had this app, and I remembered to do everything because of the reminders given in the app. For $1.99 per eclipse, it's well worth it! It also means you don't spend valuable totality time looking at your watch to find out when the various events will occur.
18 people found this review helpful
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Foxwood Astronomy
July 11, 2019
Aaron, Thanks for the 5-Star Rating and detailed report. I love your comparison of seeing the 2017 eclipse WITHOUT my app and then seeing the 2019 eclipse USING my app. It explains, from a real user, the benefits of my app for eclipse observing. I am an eclipse chaser and I designed this app exactly for the purposes you explained. Thanks!
A Google user
January 6, 2020
I used this app during the 2017 total solar eclipse and it worked great. I kept details and notes about the eclipse in the app for reference. Unfortunately there was a bug in the v2.0 update which deleted my saved data. However, the developer quickly fixed the bug after I reported it, and later implemented a way to save data for past eclipses so I could get back to the data screen and restore most of the information. 5/5 stars for a great app and fantastic customer support.
10 people found this review helpful
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Foxwood Astronomy
January 7, 2020
Yep, Theodore got caught with a bug when upgrading from Ver. 1 to Ver. 2. The bug was promptly fixed. I could not fool around with the app code prior to the 2019 eclipse. But now that 2019 is a "past eclipse", in Ver. 3 I changed the way the app functions with past eclipses and now "past eclipses" have the Save Eclipse Data function.

What's new

2017 and 2019 eclipse data sets are available in the FREE download in Test Mode.
Delta T value adjustments.