Interactive Gregorian/Julian Day Calandar. **Update, thank for the feedback, new update coming soon, with bigger home screen widgets and bigger font. Julian Day converts a Gregorian (calendar) date to a Julian day of the year (and from Julian to Gregorian). 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. Comes with a Home Screen Widget that changes Julian Day with the Correct calendar day.