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Julian day

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Also known as JD

days since the beginning of the Julian Period

Key facts

Armenian
Other calendars Armenian 18 Margach 1475
Bengali
20 Joishtho , BS 1433
Chinese
Yang Earth Monkey ・ Winnowing Basket Mansion , 19 Sìyue , Bǐngwǔnián , ( Xiaoman , 2 days until Mangzhong )
Common era
3 June 2026 CE
Coptic
26 Pashons , AM 1742
Egyptian
18 Phaophi , NE 2775
Ethiopian
26 Genbot, AD 2018
French republican
Décade II, Quintidi de Prairial de l'Année 234 de la République
Gregorian
3 June , AD 2026
Hebrew
18 Sivan , AM 5786
Islamic
17 Dhu al-Hijjah , AH 1447 , (tabular method)
Iso week date
2026-W23-3
Japanese
18 Uzuki , Reiwa 8, ( Shōman , 3 days until Bōshu )
Julian
21 May , AD 2026 ( AM 7534)
Maya
13.0.13.11.12 , 5 Zotz , 2 Eb
Roman
ante diem XII Kalendas Iunias , AUC 2779
Solar hijri
13 Khordad , SH 1405

via Wikipedia infobox

Wikidata facts

Subclass of
day
Show 3 more facts
discoverer or inventor
Joseph Justus Scaliger
different from
Julian calendar
Sources (3)

via Wikidata · CC0

~35 min read

Encyclopedic overview

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The Julian day is a continuous count of days from the beginning of the Julian period; it is used primarily by astronomers, and in software for easily calculating elapsed days between two events (e.g., food production date and expiration date).

Excerpted from Wikipedia’s “Julian day” article, available under the CC BY-SA 4.0 licence.