The Julian day is the continuous count of days since the beginning of the Julian period, and is used primarily by astronomers, and in software for easily calculating elapsed days between two events (e.g. food production date and sell by date). The next Julian Period begins in the year AD 3268.

Why do we use a Julian calendar?

Nearly all Eastern Orthodox churches use the Julian calendar to establish the dates of movable feasts such as Easter. The current discrepancy between the Julian and Gregorian calendars is 13 days.

What does the Julian date refer to?

A calendar notation in which the date is represented by one number. The Julian date is widely used with computers because it requires less programming to compare dates that are single integers. Julian numbers are also used within a single year; for example, February 1 is Julian 32.

What countries use the Julian calendar?

The Julian Calendar in Modern Society Some Orthodox churches still use it today to calculate the dates of moveable feasts, such as the Orthodox Church in Russia. Others who still use the Julian calendar include the Berber people of North Africa and on Mount Athos.