Look up Julian day in Wiktionary, the free dictionary.
Julian Day may refer to:
Julian day, a continuous sequential count of days since day 0 at the beginning of the Julian Period on Monday, January 1, 4713 BC, proleptic Julian calendar
Julian C. Day (born 1952), American corporate executive
Julian R. Day, author, computer project manager and charity fundraiser
Calendar Man, a DC Comics supervillain, whose real name is Julian Gregory Day
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