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US / Julian Day Calendars (1951-1986)

Below are full, 1 year, U.S. calendar pics.
Each picture has the days and month as normal but below each day is the Julian Day for the year.
Several parts on Sportsters are coded with Julian Dates (especially engine cases, 1975-up).
These calendars will help decipher dates for parts using Julian dates.

When using these calendars, make sure to take the “Model Season” into account when deciding on what year calendar to use.

Julian Calendar for 1951Julian Calendar for 1952Julian Calendar for 1953Julian Calendar for 1954Julian Calendar for 1955
Julian Calendar for 1956Julian Calendar for 1957Julian Calendar for 1958Julian Calendar for 1959Julian Calendar for 1960
Julian Calendar for 1961Julian Calendar for 1962Julian Calendar for 1963Julian Calendar for 1964Julian Calendar for 1965
Julian Calendar for 1966Julian Calendar for 1967Julian Calendar for 1968Julian Calendar for 1969Julian Calendar for 1970
Julian Calendar for 1971Julian Calendar for 1972Julian Calendar for 1973Julian Calendar for 1974Julian Calendar for 1975
Julian Calendar for 1976Julian Calendar for 1977Julian Calendar for 1978Julian Calendar for 1979Julian Calendar for 1980
Julian Calendar for 1981Julian Calendar for 1982Julian Calendar for 1983Julian Calendar for 1984 Julian Calendar for 1985
Julian Calendar for 1986


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Trace: • MiscRes: US / Julian Day Calendars (1951-1990)