Glossary · Term

Xuanming calendar

822 · 9th century · Also known as Senmyō calendar, Senmyō-reki

The Xuanming calendar was an astronomical calendar compiled in Tang China and adopted in 822. It reached Japan with an embassy from Balhae and was introduced there in 862 as the Senmyō calendar, which Japan then used, without official revision, for more than 800 years, until it was replaced by the Jōkyō calendar in 1685.

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Cite this entry
APA
The Epoch Institute. (2026). Xuanming calendar. In The Epoch Institute Encyclopedia. https://the-epoch-institute.org/encyclopedia/xuanming-calendar
MLA
“Xuanming calendar.” The Epoch Institute Encyclopedia, The Epoch Institute, 2026, https://the-epoch-institute.org/encyclopedia/xuanming-calendar. Accessed .
Chicago
The Epoch Institute. “Xuanming calendar.” The Epoch Institute Encyclopedia. 2026. https://the-epoch-institute.org/encyclopedia/xuanming-calendar.
Harvard
The Epoch Institute (2026) ‘Xuanming calendar’, The Epoch Institute Encyclopedia. Available at: https://the-epoch-institute.org/encyclopedia/xuanming-calendar (Accessed: ).

Last reviewed October 2026Random entry ↻