A photograph showing the traditional design wall calendar hanging on the wall of the six star hotel of Yanggakgo, located on Yanggakgo island in the middle of Taedong River in Pyongyang, North Korea. The smaller prints on the calendar shows the year in Juche system. The Democratic People's Republic of Korea calendar, DPRK calendar, or Juche ( 주체 ) calendar, named after the Juche ideology, is the system of year-numbering used in the Democratic People's Republic of Korea.