Korean currency
The yen was the currency of Korea during the Colonial rule, from 1910 to 1945, and was issued by the Bank of Joseon It was equivalent to the Japanese yen and consisted of Japanese currency and banknotes issued specifically for Korea. It was replaced by the South Korean won at par in 1945, and by the North Korean won in 1947.
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.