Julian Day Count

The Julian day is a continuous count of days since the beginning of the Julian era on January 1, 4713 BC.

convertdate.julianday.from_datetime(dt)

Convert from datetime to julian day count.

convertdate.julianday.from_gregorian(year, month, day)

Convert from Gregorian year, month and day to julian day count.

convertdate.julianday.from_julian(year, month, day)

Convert from Julian year, month and day to julian day count.

convertdate.julianday.to_datetime(jdc)

Return a datetime for the input floating point julian day count

convertdate.julianday.to_gregorian(jdc)

Convert from julian day count to Gregorian date.

convertdate.julianday.to_julian(jdc)

Convert from julian day count to Julian date.