Julian calendars are based on the Gregorian calendar. These calendars were adopted in the year 1582. In this way, a user can extrapolate any date to any other date using the Gregorian calendar. In the Julian calendar, there is no year 0 but there is a year -1 before it. For example, December 30th, 0 on the Gregorian calendar is January 1st, -1 in the corresponding Julian calendar.
This application provides an easy way to convert between Julian and Gregorian calendars. This calendar has three different display modes. You can choose to display the date or the Julian day, or just the week number. You can also select all three options, though these may not be suitable for small screens. Regardless of the mode you choose, the Julian days and week numbers are always separated by a minus sign "-". If you have a computer that uses a different calendar system, you should install this app and convert your data to Gregorian.
The Julian Date Conversion Calendar will change your date settings to the Gregorian calendar, making it compatible with your software. The Gregorian calendar is also incompatible with the Julian date convention, so you'll need to convert your dates before you can use them in your programs. This will prevent you from accidentally changing the date in the middle of the workday. You can use a Gregorian-compatible software to make the necessary adjustments.