Of course, I have set the Gregorian calendar on my laptop, and as an alternative the Japanese lunar calendar, and according to that, today is New Year. To which year / month do we change today?
Japan now celebrates New Year on January 1st, but it is actually Chinese New Year, which in Japan is not celebrated under the term 旧 正月, but is "noted". We're moving into the year of the bull.
February 12, 2021 is according to the traditional Chinese calendar:
https://de.wikipedia.org/...r_Kalender
1st day / 1st month 正月 Chinese Zhēngyuè, Japanese Shôgatsu / year of 辛丑 Chinese Xīn-chǒu, Japanese Kanoto-ushi (in a 60-year cycle).