Reformed Daming Calendar

重修大明历 Jin · Zhao Zhiwei

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Overview

Promulgated in 1180 CE under Zhao Zhiwei; used from the late Jin into the early Yuan, over a century.

Key data

ItemDetail
Period of use1180 – 1280 CE
CompilerZhao Zhiwei
Year headJian-yin
Carried into YuanTo 1280

Zhao Zhiwei and the Reformed Daming calendar

The Reformed Daming calendar was made by Zhao Zhiwei, promulgated in 1180 CE, replacing Yang Ji’s Daming.

It ran from the late Jin into the early Yuan unchanged, over a century — the longest-used calendar of the Jin-Yuan transition.

Into the Shoushi calendar

The Yuan still used it until 1280; the next year Guo Shoujing’s Shoushi calendar was promulgated and Chinese calendrical work reached a new height.

A calendar spanning two dynasties and a century must have had merit; it is a key reference for the state of the art before the Shoushi.

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Compiled and arranged by Chujia Kuang.