411 REFERENCE · Wiktionary
Julian day
Reference material by Wiktionary contributors. This retains its source identity and is not 411 news reporting.
English
Noun
A date expressed as a real number of days counted with GMT noon on 1 January 4713 in proleptic Julian calendar (November 24, 4714 , in the proleptic Gregorian calendar) as zero; used primarily by astronomers and historians to compare events recorded in different cultures.
Synonyms
JD
Julian date
Translations
date
Finnish: fi juliaaninen päivä
Irish: ga lá Iúlach m
Further reading
Julian day
en eponyms
en Astronomy Calendar