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JulDayPro Interactive "Day Of Year" Calculator from Digital Burro

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If you need the current day of the year (DOY), you need JulDayPro. JDP performs interactive Julian/DOY calculations between Gregorian/Julian calendars and shows the current DOY as a screen widget. No need to open the application, the DOY will be visible on the Android home page while you are working on logbooks/reports! The screen widget updates at midnight, so you will never have a incorrect DOY. Simply tap the widget to open the application to use the calculator.

New for version 1.6! Widget update for UTC or local time. Updated Julian/DOY user interface. Widget now supports user defined colors.

About (modified) Julian Day/Day Of Year: For example, January 1 is Julian 1, February 28 is Julian 59, etc. Of course, for a leap year February 29 would be Julian 60.

The (modified) Julian Day/Day of Year is commonly employed by agriculture, food service, manufacturing and the military. Modified Julian Day/Day of Year provides a simple mechanism to track manufacturing dates, production dates or just a simple way to track days (or difference between days).

Note that version 1.6 deploys using Google Analytics, which can be disabled by unchecking "Analytic Reporting" on the settings menu.

Still just $0.99 on the Android market.


  • To install as a widget on your Android device:
  • Press the "+" on the bottom of your display to access the "Add to Home" menu.
  • Select "Android widget" from the "Add to Home" menu
  • Press "JulDayPro" from the menu
  • Your new widget should now be visible


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