Solar Eclipse Timer

Solar Eclipse Timer

Solar Eclipse Timer, the only "talking" timer for the August 21, 2017 eclipse!

Additional Informations
  • Current Version: 1.15
  • Updated: August 1, 2017
  • Requires Android: 4.4 and up
  • Installs: 10,000 - 50,000



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 if you are only going to be in a partial eclipse, it's for being in 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. The first version of this program was developed by me in 2002. 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!


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  • Solar Eclipse Timer
    Terri Mead Published date: August 1, 2017

    Love it!! I live in Wyoming, fortunately, for many reasons, have figured out the App, will be in the path of totality on August 21, smartphone, eclipse glasses, and camera in hand ready to listen to my C1, C2, C3, and C4 prompts! I wasn't nearly as excited about the eclipse until I saw the video about your App on Facepaste. Glad I did. Thank you for the time and effort you have devoted to make this happen!! Full Review

  • Solar Eclipse Timer
    diana marie Published date: August 4, 2017

    Not sure if this will work for me, as I am in Hawaii, and we only get a partial eclipse here, but I am hoping to find some use from it. I plan to come to the Mainland in 2024 and possibly Australia in 2023. Will it still work for those? Full Review

  • Solar Eclipse Timer
    Ben Lindstrom Published date: August 14, 2017

    It's a bit frustrating that when I manually enter latitude/longitude coordinates, they don't stick so I can't load the timers with it. Also annoying is not being able to see the timers in a partial eclipse location - between these two "features" of the app in having a hard time testing it out ahead of time. P.S. I saw your post on Cloudy Nights - that's where I read about your app. Full Review

  • Solar Eclipse Timer
    Matthew Pendergrass Published date: August 5, 2017

    Great app, easy to use. I saw the smarter every day video and decided to buy and give this app a try. Luckily (already knew this) I live in the middle of the lines and I will have a 2 minute 39 second viewing time, but it's nice to get the contact times so I don't have to figure those out. Full Review

  • Solar Eclipse Timer
    Published date: August 4, 2017

    I'm a professional photographer, living in Oregon, right in the middle of the Path of Totality. Although I've been shooting for 50+years, this will be my very first solar eclipse, so I knew I was going to need some help and guidance. This app is really a TEN-STAR APP...and has so much information and is so detailed, that I wonder how Gordon can afford to provide all that high-tech help, at such a reasonable cost! Try will be so will tell all your friends to buy and use it too!! Thank you Gordon, for your creativity, and your talents! Full Review

  • Solar Eclipse Timer
    Melissa oster Published date: August 8, 2017

    I used the links to the other maps provided in the app to enter my exact location I will be when watching the eclipse. All seems to be working great & says I'm in a good spot. However, once I load times into the main screen it says totality duration is zero. I know this isn't the case since I will be about 1-1.5 miles from the center of the totality line & the other map says total solar duration is 2.39 min Full Review

  • Solar Eclipse Timer
    Shalom Fisher Published date: August 14, 2017

    This is exactly what I was looking and praying for. Thank you so much. I think the voice sounds great. This is just perfect and is very exciting. It brings tears to my eyes. May you be blessed for your hard work on this excellent app. Full Review

  • Solar Eclipse Timer
    Daniel Brunner Published date: August 15, 2017

    I expect this app to be great however, it charges $2.19 instead of $1.99. That's not enough to make it a deal breaker though. Thanks for your work. Full Review

  • Solar Eclipse Timer
    Dillon Allen Published date: August 2, 2017

    I've been practicing for my little brother's coords in the path for 8/21. Great app Doc! You've really made your mark! Full Review

  • Solar Eclipse Timer
    Helga Kocurek Published date: August 12, 2017

    There is too much audio and the alarm is nasty. I wish I could select which reminders I want instead of having to choose between all or nothing. Full Review

  • Solar Eclipse Timer
    Published date: August 8, 2017

    Seems to work only if you're in the area for totality. We can see it here, too, just not a complete eclipse. However, I can't access any of the features without at least "4 times." Full Review

  • Solar Eclipse Timer
    Mmustangg Ggnatsumm Published date: August 2, 2017

    Love this app! Using it, I've found a spot right on the center line here in Wyoming! Full Review

  • Solar Eclipse Timer
    sky fisher Published date: August 8, 2017

    It won't find my coordinates it just keeps saying error Full Review

  • Solar Eclipse Timer
    Jeffry Johnston Published date: August 1, 2017

    Would be much better if it didn't talk and beep during the total phase of the eclipse, especially since the voice is so stern and joyless and the beep is so annoying. Asked the dev to provide a silent option for totality but he refused. His "reason" was that he'd have to drive to the eclipse path to test any changes. But he's put out two updates since then so he was either lying to me or he hasn't tested the last two changes. Full Review

  • Solar Eclipse Timer
    Jim Goodall Published date: August 9, 2017

    You can tell a lot of thought went into this app. Excellent! Full Review

  • Solar Eclipse Timer
    Jenette Vandiver Published date: August 11, 2017

    So far love this app! I would like to now how to get it off universal time though, please. Full Review

  • Solar Eclipse Timer
    Valerie Goldston Published date: August 9, 2017

    Looks like a great app. Excited for my first eclipse! Full Review

  • Solar Eclipse Timer
    Marcus M Published date: August 6, 2017

    I'm excited to use this app! I hope that it lives up to the posted description! Great job from a local developer! Full Review

  • Solar Eclipse Timer
    Jay Szott Published date: August 14, 2017

    Recommended from smarter every day. Lives up to what it is supposed to do. Full Review

  • Solar Eclipse Timer
    Jerry Waddel Published date: August 7, 2017

    Can't wait to see it work. Easy to use. Full Review

  • Solar Eclipse Timer
    Beth moscato Published date: August 2, 2017

    I've been wandering around town looking for spots of total eclipse viewing.. pretty cool. And helpful! I homeschool, so we've used it a couple times in lessons. Edit- -this was fixed. Thank you!--Only thing is somehow I clicked something and it's Do I gthe prompts and reminders for the eclipse I think I hit save..something. can't figure out how to delete or stop it. Full Review

  • Solar Eclipse Timer
    Warren Terrall Published date: July 24, 2017

    This app is really cool! Going to use it in August. The only thing is that in order to see times in your timezone, you have to be in path of totality. Otherwise it just gives you UTC. I'd like to be able to tell people when the eclipse is for them, even if they're not going to travel to the path of totality. Full Review

  • Solar Eclipse Timer
    Ben Hoover Published date: July 24, 2017

    This app is going to help me so much. I have always wanted to see a total solar eclipse and I will take all the help I can get to see it. I heard about this app from thr YouTube channel, Smarter Every Day. Thanks to Destin for showing me this and Thanks to you Doctor for developing this app. Full Review

  • Solar Eclipse Timer
    Published date: July 24, 2017

    I had a few questions about the app and the eclipse, the developer was able to respond within a reasonable time frame, this app is amazing, and i cant wait to enjoy and experience the solar eclipse in my own hometown! Thank you again! Full Review

  • Solar Eclipse Timer
    Ryan James Published date: July 26, 2017

    Amazing work! I'm taking the day off to fully appreciate this astrological event. It's nice to know that I'll have 2:30 of totality in my front yard. Thank you for creating this app for those of us lucky enough to be in the path of totality! Full Review

  • Solar Eclipse Timer
    Peter Dienes Published date: July 30, 2017

    An essential tool for the August eclipse! One thing i would recommend to develop is to speak data also when in background, instead of saying the standard speach. Full Review

  • Solar Eclipse Timer
    Alisha Gleason Published date: July 30, 2017

    Even though the eclipse isn't for a while I had the app find my location and check the times just see what it would say and what I can expect from my location like I saw in a YouTube video. Problem is that made the app think the eclipse was happening that day. It kept giving me reminders and I couldn't make them stop. I tried clearing the data, resetting it, etc. Even when it stopped showing the time for the eclipse it wouldn't stop. My only options were to deny the app permission for notifications or uninstall it. Full Review

  • Solar Eclipse Timer
    Mark Stevens Published date: July 26, 2017

    Is cell phone connectivity required? My viewing location will not have cell phone service. Full Review

  • Solar Eclipse Timer
    Published date: July 29, 2017

    Found this app after watching smarter everyday. I might have a dislike though. How do I change my location? I see the long/ lat option. But that is a pain in the ass. There should be an easy way to change your location. Like a zoomable Google map link where I can zoom in to where I plan on being during the eclipse. And then have it automatically enter the long/lat into the app. But for now I will look up my aunt's house in Ketchum id. Then get the long/lat. Hope that it's the correct format of long/ lat. Physically enter it into the app. And plan accordingly. But who knows. I might be an idiot and there could be a way to do that just like I said. Thanks for the app. And thanks for sharing your knowledge on Smarter everyday. Update in response to the reply from foxwood. Really? That's really your reasoning behind not having that option? I would bet that the Majority of users do and will have cell service while looking at the eclipse. Why you want to accommodate the minority? Why not have the option to look at a map and also the ability to manually enter the coordinates? This app is proving to be useless. The app resets itself when cutting/ pasting the coordinates. So the numbers reset when go back and forth between pages. There are much better apps out there and they are free. Don't waste your money. Full Review

  • Solar Eclipse Timer
    Published date: July 26, 2017

    Hey thanks for the fun little app to play with until the day of. Looks and feels solid. Just something to "enhance" the full solar eclipse. Full Review

  • Solar Eclipse Timer
    Ellie Bowers Published date: July 25, 2017

    I can't wait to use this app in August 2017,I saw the interview video, amazing work creating this app, thank you. Full Review

  • Solar Eclipse Timer
    Larry Potter Published date: July 31, 2017

    Getting smarter everyday! Full Review

  • Solar Eclipse Timer
    Brad DeLaney Published date: July 29, 2017

    OMG this will help so much on the big day thank you so so much Full Review

  • Solar Eclipse Timer
    Linda Aguilar Published date: July 25, 2017

    Plus I live close to bothNashville and the ultimate Ky!!!! Full Review

  • Solar Eclipse Timer
    Mike Mah Published date: July 1, 2017

    Very useful for novice or veteran alike. In the past, I have recorded my own voice timings for eclipses or relied on team leader, but this makes things so much easier. Thanks for a great utility! Full Review

  • Solar Eclipse Timer
    James Ellis Published date: July 5, 2017

    The app is great and very useful. Eclipse phenomena pass by very quickly, and it's great to have a timer app that will not only calculate times based on GPS location, but will talk to you so you don't have to take your eyes off the eclipse to look at the phone. The devs know what is needed in such an app and they gave it to us. Full Review

  • Solar Eclipse Timer
    Mark Coy Published date: July 16, 2017

    I am not much into apps but I wanted the full experience of the eclipse. The app was super easy to set up even for a rookie like me. Thanks for thinking about others when you made this app. Full Review

  • Solar Eclipse Timer
    Varun Dev Jamwal Published date: July 2, 2017

    Hello..greetings from INDIA..bought this app just now after seeing abt it on SmarterEveryDay Yt this time we won't be observing eclipse..I hope we it would be updated as other solar eclipses happen round the world and not just US centric... Full Review

  • Solar Eclipse Timer
    Rick Rakoczy Published date: July 21, 2017

    Definitely nerd developed, fortunately I speak nerd. Be patient with it and you will be rewarded with a great eclipse experience. If you need something more basic get some approved glasses, the eclipse time and location, a watch, a go see it. Full Review

  • Solar Eclipse Timer
    Chris Brush Published date: July 17, 2017

    Fantastic app! Saw this on Smarter Every Day and wanted to support your hard work. I also purchased it in anticipation of the 2024 eclipse that I am in the direct path of. Very excited, thank you again! Full Review