Solar Eclipse Timer

Solar Eclipse Timer application logo

ONLY Useful If You Are Going To The PATH Of TOTALITY!! Solar Eclipse Timer is your smart phone guide for a total solar eclipse. It's like having your own personal astronomer help you on Eclipse Day! It is simple to use and has many unique features! Just get into the path of totality for the solar eclipse, and then with just 2 taps on your device, the app is ready to "talk" you through the eclipse. (NOTE: It's NOT useful in an area with only a partial eclipse. It's for people getting to the path of totality)

I have observed 3 previous total solar eclipses overseas and I am doing public out reach for the 2017 US total solar eclipse. Being based on my personal experience with eclipse observing and photography, I know exactly what is helpful when observing a total solar eclipse.

Created for first-time eclipse observers as well as veteran eclipse chasers, it is released in time to prepare everyone for the August 21, 2017 Total Solar Eclipse. This will be a once in a lifetime opportunity for many people and Solar Eclipse Timer is an inexpensive tool to ensure that you don't miss a second of this wonderful event!

GPS location functions automatically find your location, then the app calculates your contact times and max eclipse. With one tap it loads the 4 eclipse contact times into the timers. This function does not require an internet connection, the formula is located in the app itself!

These are all the unique features in this app:
Voice countdowns guide you precisely to the contact times. Announcements are made at the proper times to tell you to observe for interesting things during the partial phases, such as the temperature drop, lighting changes, animal behavior and shadow bands. The app also tells you when it is safe to take your solar glasses off and then when you must put them back on. To practice your plan for photography, the app has a demo session that plays a totality movie synchronized with the timers. The app includes a unique calculator that lists the times you use to take a sequence of partial phase images that creates a beautiful sequence of the phases just like the professional photographers! Although not a mapping program, included are internet hyperlinks to interactive maps of the eclipse path to help guide you to totality.
The app includes an extensive help file detailing the use of all of its unique features as well as eclipse day checklists and educational information about the partial phase phenomena.

Download the app, get yourself into the path of totality, tap a few buttons and sit back and let Solar Eclipse Timer "talk" you through this spectacular celestial event! It's an experience you will never forget!

No App Ads. No In-App Purchases. You Get It All!

Automatic "Wake From Screen Lock" Notifications For Eclipse Events
Automatic GPS Geo-location
Automatic Contact Time Calculation
Automatic Totality Duration Countdown Timer
Automatic Contact Time Loading Into The Timers
Automatic Conversion To Your Local Time Zone (from UTC)
Partial Phase Phenomena Observation Reminders
Precise Countdowns To The Contact Times
Max Eclipse Alert
Horizon Observation Reminder
Announcements For Solar Glasses Off And Solar Glasses On
Compressed Eclipse Demo Program For Device Testing
Totality Photography Practice Demo Program With Totality Video
Partial Phase Image Sequence Calculator
Path Of Totality Hyperlinks
Eclipse Data File Saving Ability
Extensive Help File


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. You are responsible the timing. Glasses should be ON if it's bright!

Solar Eclipse Timer App Description & Overview

The applications Solar Eclipse Timer was published in the category Photo & Video on 2017-02-13 and was developed by Gordon Telepun. The file size is 92.11 MB. The current version is 1.10 and works well on 10.0 and high ios versions.

Added stop button to main timer screen to stop pending notifications

Solar Eclipse Timer App Tips, Tricks and Rules

Solar Eclipse Timer Reviews


This App made My Eclipse  Trump4lyfe  5 star

The best decision I made during my eclipse trip was buying this app with audio instructions. The app proved to be very useful in directing when phases were happening such as the time to observe shadow banding (which I undoubtedly would’ve missed without). This app aiding in providing one of the coolest moments in my life and I thank you for making it.


Good geolocation feature  Jarrah821  3 star

Good geolocation, but the voice updates stopped about five minutes before totality and did not resume until c4. Disappointed that the countdown feature failed during the exciting phases of the eclipse.


Just what I was looking for...  Ohio153  5 star

In the weeks leading up to the eclipse, I kept wondering how to get the most out of the experience. I came across Gordon Telepun's videos, which were super informative re: all of the eclipse phenomena. The selling point for the app was the timer feature, and also the audio announcements. Having the app on the day of the eclipse made all the difference for me! I felt like I didn't miss anything important. Given my desire to be all prepared, I appreciated the detailed list Gordon had for what to do with your phone and what to observe. I was prepared for shadow bands (we saw them in Anderson, SC on a white bedsheet). I played the practice eclipse video a few weeks beforehand, and that was a great orientation. One thing we found helpful was being able to check our location (we considered several different viewing spots) to see if we were on the center line of the path. It was easy to use the app to determine a spot for max totality; we didn't want to miss any precious seconds. People camped out in our viewing location were coming to me, asking things like "when is the 1st contact? When does totality begin?" I showed them the app for answers. I had my phone volume cranked up so the people around me could hear the audio announcements. (Note to self: bring a blue tooth speaker next time like other reviewers did:) When the eclipse ended, I took a few minutes to record my observations & impressions under the Eclipse Data tab. Kind of nice to have a synopsis of the experience with all the GPS and eclipse contact times automatically filled in for my location. Don't leave home for the next eclipse without this app!

Murphy's Outlaw

I want to thank you  Murphy's Outlaw  5 star

For making a once in a lifetime experience that much more incredible. Your live guidance helped us make the most of the eclipse. It was a lifesaver, as we had our sun flirting in and out of cloud cover. The audio cues kept us on track, particularly during totality when seconds were so important. Again, I cannot thank you enough. If I could give 10 stars I would. I plan not only to recommend but evangelize your app as we roll upon the next American eclipse. See you in 2024!


No Announcements; Too Much Work to Get Up-To-Speed  Julie201  1 star

I am very sorry to have to write this review because I can tell all of the heart and work that went into the creation of this app. If I could rate it for that, it would get 5 stars. Thank you for your contribution; I can tell that you are truly passionate. That said, I have to rate it based upon my experience. I feel like I lost $1.99 because I was unable to use the app so I had a very frustrating and poor experience. I downloaded a few days prior to Aug 21 and recommended to friends after seeing on Smarter Every Day. I went to Kennedy Space Center for the eclipse so I was at only 85-88% occlusion. The How-To files to be totally overwhelming. It felt like I had to read a dissertation to get up to speed on the app. I entered my coordinates by GPS and thought that the app would at .least. announce C1 and C4. Nothing. That's what I paid for! Ugh. I felt there really should have been some sort of disclaimer if it was going to be this difficult to get up to speed on. In this day of beautiful GUI's for our apps and computers, my expectation is that when I download an app, that I will not need to work so hard to enjoy it. For example, less words! Seriously. Tech/Science folks can talk too much (because they know so much; somewhat guilty party here) but you have to present high level and allow folks to drill down to the information that they feel that .they. want/need. Also, use common terms/less shorthand and acronyms. Refer to common times (2:35 EST vs 14:35:15.8) and in parenthesis somehow (use pop-ups or 'press text' for details) let them see the fun, geeky details. In my opinion, the graphics need a make-over. I'd suggest thinking like Apple design. Less text, more big, bold objects (virtual "buttons") that create hot links to further details. I'd strongly recommend finding someone who is good at taking complex information and making it simple, who can learn about this topic and apply their own question-asking abilities to the app so that it can be re-worked and presented more intuitively. Sometimes we get too close to something that we can't see it's challenges


Great app, very accurate  RGP002  5 star

Like many others, I saw the app and Dr Telepun with Destin on SED, and downloaded immediately. I didn't do a ton of advance work, but did familiarize myself with the functionality for thirty minutes and a few practice runs, and corrected the times for lunar limb profile at my location. I don't know how difficult that would be to integrate into the app, but allowing the calculation to occur as an option within the app would be nice -- although there are websites that do most of the heavy lifting on the calculation now anyway. On the day of the eclipse, I used a Bluetooth earbud to hear the vocal cues, and kept my eyes in the sky (and my kids). Great app, very accurate with the times once corrected -- which was very easy to do. Helpful verbal reminders, too. I found the app very easy to use, and sufficiently comprehensive if a bit utilitarian. But as an engineer, utilitarian is as much a complement as comprehensive is. You might not confuse the GUI for a pretty Apple produced piece of software, but it's every bit as functional as one. I was in Chile earlier this year -- and having an app like this at least makes me think about wanting to go back for the eclipse in 2019. Good work to the developer and team. Apps like this are the fantastic part about the smartphone world we live in.


Helped with shadow bands  FWBII  5 star

Because of this app my wife, my daughter and I were able to see the shadow bands in Douglas Wyoming. Without it I'm absolutely certain I never would've experienced it. Can't wait until the one is released for 2024. I want to start scoping out potential viewing spots.


Disappointed  aloreep  1 star

I'm not in the path of totality, but the app never said a single thing and wouldn't update the front page with maximum or anything. Edit: okay, I did miss the first paragraph, but I don't understand why the app couldn't still dictate about the parts of the eclipse that were experienced, even if not in the path of totality.


Awesome and well done!  AstroChuck  5 star

This app performed wonderfully during totality for the 8/21/2017 eclipse. We traveled to Metropolis, IL for this event. As an amateur astronomer for decades I was determined to use 1/2 of totality to image and the remaining 1/2 to enjoy with my naked eyes. I had practiced my plans along with the wonderful demo the program offers. While I had backup plans in case the app wasn't accurate at the actual eclipse, I was pleasantly surprised when first contact was announced perfectly on time. The audible cues are amazing. With a 10-second countdown to totality I rest assured that the app was working fine and I could focus on the eclipse. There's also a 10-second countdown to the maximum eclipse which was the cue I needed to stop taking images, replace my solar filter on my telescope and enjoy the remaining totality with my wife. Can't wait til 2024!


Works, but...  astronoman  4 star

So, it was good at finding my location and accurately displaying the times of the different eclipse events for the Great American Eclipse. And once first contact began, it reliably sent notifications to my iPhone 6...up until three minutes before totality. After that, it never sent another notification. It didn't tell me when to remove my eclipse glasses or put them back on, or when to look for the diamond ring or Bailey's Beads. It also never gave me an audible countdown to totality. A few minutes after totality ended, I hit the stop button since it wasn't sending any more notifications anyway. So I was overall disappointed. Was I supposed to leave my phone unlocked and the app running in the foreground after 3min until second contact? My cousin was also using this app on her Galaxy S8 Android phone and it did the exact same thing as mine. We were both let down by it. *UPDATE: In response to the developer's statement below, no I wasn't using the iPhone's camera or any other apps during the eclipse. This app was always running in the foreground except while the phone was locked, so I don't understand why the notifications didn't come through. Also, I corrected my initial review to say that I was using this app on an iPhone 6, not 7. I was actually using my 7 to take pictures, and used the 6 exclusively to run this app. Sorry for any confusion. *UPDATE #2: Maybe it was just user error (meaning me). Once the 3-minutes-till-totality notification occurred, I checked the app and then manually locked my screen to save battery life, thinking there would be more notifications telling me to check the app as totality neared. My guess is that my cousin made the same mistake with her Android phone. Apparently we should have left our phones unlocked from that moment on, in order to hear the audio cues. I hope we remember to do that for the next total eclipse in seven years! Thanks for the helpful info, "Developer". I have changed my rating since it was my fault, not the app's. Still, I think I must have missed the fine print somewhere explaining to me how to correctly use the app near the totality phase. *UPDATE #3: Thank you to the developer for all your helpful insight into my issue. It was indeed my fault for locking my iPhone too close to second contact. It would be very helpful if close to totality, your app would give users a heads-up to leave their phones unlocked surrounding the total phase of the eclipse. Thanks again for taking the time to listen to me & for troubleshooting my problem.


Worked Well  Greg_AuS  4 star

Just used this for the US 2017 eclipse. We were in the path of totality and it worked perfectly. The audio prompts at the various contact points were exactly what I was after. UI could do with a few tweaks and tidy up but this is minor. Overall did the job well. Thanks.


We saw shadow snakes thanks to this App!  Parksrx  5 star

I was in the middle Lake Murray, SC on the day of the eclipse. This app allowed us to get the full experience of the total solar eclipse from shadow snakes (I throw 4 white towels on the front of my boat) to Bailey's Beads. This app was awesome at keeping you prepared for each stage of the eclipse.


Thank you Gordan, et al. for the awesome app!  Infin17us24  5 star

I used this app with the 2017 Eclipse. It was amazingly useful and terrifying precise. I'm relatively certain that current lack of damage to my vision is a direct result of the vocal commands the app used to guide me through the full eclipse. (I may or may not have been freaking out with excitement while watching the world go dark at the time.) All in all, I'd rank this app 299,792,498 out of a possible 5 stars. (Also shout out to Destin of Smarter Every Day who directed my attention here. Keep up the great work everyone!)

Gandoredumbledalf Dent

totality Awesome!  Gandoredumbledalf Dent  5 star

i couldn't have developed a better app! flawless and hope it's available in 2024!!


Thanks for spending your time.  AnxiousCathy  5 star

Thanks so much for spending your precious time developing this app. It worked like a dream and got to enjoy the eclipse with narration. It was great of course.


Great app  MrHyde888  5 star

App worked perfectly as advertised with an extremely high level of precision.


Great app. Need in 2024  kayfeeney  5 star

Everyone was so happy that I had this app during the eclipse. It was great for the kids to know not to look up after the end of totality. We even were warned to look for shadow bands, and we did see them!!! Thank you. I really hope this works in 2024. I will be ready for the next one.


What a gem!  J.W.Wells  5 star

Your app worked perfectly and made watching the eclipse (in Corvallis, OR) an enjoyable, safe experience. It made the timing of taking pictures a breeze! The only downside - when the app told us to put our glasses back on, it was absolutely correct - totality was over but we wanted it to last forever! Ah well, waiting for 2024!


Didn't work  D6SLO  1 star

Apparently this app was designed only to work in locations that were in the path of the full total eclipse. We were in the location where we were at about 80% totality and the app was useless there. It would've been nice had they mentioned that upfront! I'm glad I only spent two bucks!


Good data, awful implementation  JetForMe  2 star

The app seemed to provide accuate data, but wow, the implementation is terrible. What should've been entirely automatic instead requires numerous taps, in specific order. It also alerts you to the eclipse events on the wrong day (as well as the right one), because it doesn't seem to take the date into account. Very easy to screw up and not get reminders at all. Fortunately, you've probably got a lot of redundancy, and won't need to rely on this one app.


Ready for the 2024 update!  telegraham  5 star

Like most othes, found this through Smarter Every Day. Had the kids watching the app when they weren't looking at the event, and it sparked an awesome totality group countdown. So much fun! Know of others who had connected apps that didn't work due to server overloads. Not a problem for Solar Eclipse Timer! Thank you Angela and Gordon!!!

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