Korean calendar

Many of them were adopted from the lunar Chinese calendar system,[1][2] with modifications occasionally made to accommodate Korea's geographic location and seasonal patterns.

During the late Goryeo period a revised version of Shòushí, known as the Taet'ong calendar (대통력; 大統曆) saw limited use.

[4] Beginning in 1644 (22nd year of Injo's reign), Korean scholars began discussing the adaptation of the Qing-made Shixian calendar (시헌력; 時憲暦; siheollyeok), as the limitations of the Ch'ilchŏngsan became clear.

Although the Shixian calendar was officially adopted in 1653 (4th year of Hyojong's reign), it was not implemented in earnest until 1725 (1st year of Yeongjo's reign) as Korean scholars had little knowledge of western astronomy (which heavily influenced the Shixian calendar) and the Qing were reluctant to reveal any information of their new innovation.

In North Korea, the Juche calendar was used between 1997 and 2024 to number its years, based on the birth of the state's founder Kim Il Sung.

(한식, 寒食) (초파일, 初八日) or Seok-ga Tan-shin-il (석가탄신일; 釋迦誕生日) (단오, 端午) or Surit-nal (수릿날) (유두, 流頭) (칠석, 七夕) (백중, 百中) (추석, 秋夕) (중양절, 重陽節) (동지, 冬至) (섣달그믐) There are also many regional festivals celebrated according to the lunar calendar.