The AAVSO’s Julian Date Calendar for 2025 is available for download from the AAVSO website’s JD Calendars page (Julian Date Calendars | aavso) or the JD Calendar link on the JD Calculator page (Julian Date Converter).
This calendar gives the Julian calendar date and the equivalent Gregorian calendar date for each day of the year, along with the lunar phases for each month. The AAVSO JD calendar has been a basic resource for professional and amateur astronomers for over 60 years!
Good observing,
Elizabeth O. Waagen, AAVSO HQ
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