June 2025 Julian Calendar. Plan your spiritual path with essential dates and feasts for a year filled with faith and reverence. Use this tool to convert a specified calendar date/time to an equivalent julian day (jd) number.
The julian calendar uses a simple leap year system and is 13 days behind the gregorian calendar. A julian calendar converter translates a gregorian calendar date (like today’s date) into a julian day today, a continuous count of days since a specific historical date.