iPhone Screenshots


In 5 Digit mode select a Date and receive back the 5 Digit Julian Date, i.e. June 29th, 2017, would be 17180. (17) being the year 2017 and (180) being the 180th day in 2017. Purchase the Full Julian Date mode and June 29th, 2017 12:17:54 PM would be 2457934.01243. You also are able to get the Calendar Date from the Julian Date.

What's New

Version 2.0.2

FIxed issue with 5 digit Julian Date conversion to Calendar​ Date.

Ratings and Reviews

4.7 out of 5
595 Ratings
595 Ratings

Works great in govt application

This will provide you the number of days from the first of the year. Or you provide a date and it will count out the days. Works best for those who use applications that require that type of accounting. For me it’s a must and I appreciate the simple presentation ... and the fact it has a complication for the iWatch. This latest version is the best. Yup, I pay for it but well worth it. I used it daily... thanks for a great app. Now I can look back 2years and find the Julian date for 12 August...

Developer Response

Hello, ​thank you for downloading and using the app.


May not be what you're expecting...

There are Julian dates (typically 7 digits referring to the number of days since noon, November 24, 4714 BC) and the simpler 5 digit Julian calendar of 365 days in a year. They are not the same. This app is for the latter, and does a good job of it from what I can tell. But sadly wasn't what I was expecting. If the app is enhanced to explain the differences between these often confused constructs, and ideally calculate either one, I'll happily update my rating.

Developer Response

Thank you for the download and review!! Sorry, it didn't live up to your standards. I have made an update that I think you will love. It not only gives you the 7 digit Julian Date but a full 12 digits so you have it down to the second if you like. This should be live within the next week. Thanks again​, I hope you enjoy it.


Works well

For those people giving a low rating because it is not the type of information they want is ridiculous. Please rate the product and not your inability to read product description. This app works exactly as described.

Developer Response

Thanks for the review! I have a great update coming that lets you get the Julian date down to the second!


Jevon Charles
10 MB
Requires iOS 11.1 or later. Compatible with iPhone, iPad, and iPod touch.
Age Rating
Rated 4+
© 2016 Jevon Charles
In-App Purchases
  1. Full Julian Date $1.99


  • Family Sharing

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

You May Also Like