Korean yen
The Korean yen was the currency of Korea between 1910 and 1945. It was equivalent to the Japanese yen and consisted of Japanese currency and banknotes issued specifically for Korea. The yen was subdivided into 100 sen. It replaced the Korean won at par and was replaced by the South Korean won and the North Korean won at par.
Time in North Korea
Time in North Korea, called Pyongyang Time (Chosŏn'gŭl: , Hancha: or PYT) or Standard Time of the Democratic People's Republic of Korea (Chosŏn'gŭl: , Hancha: ), is since May 2018 equal to Korea Standard Time: 9 hours ahead of UTC (). Like South Korea, North Korea does not currently observe daylight saving time. Time keeping in North Korea is under the State Commission for Science and Technology.