"International Holocaust Remembrance Day is an international memorial day on 27 January that commemorates the end of the Holocaust, the genocide of European Jews by Nazi Germany between 1941 and 1945. 27 January was chosen to commemorate the date that Auschwitz concentration camp was liberated by the Red Army in 1945" (Wikipedia, 2021).
"Time to honour the victims of the Holocaust and to take a stand against Holocaust denial and distortion. On 27 January, International Day of Commemoration in memory of the victims of the Holocaust, join the @unitednations, @UNHOP, @UNESCO and @TheIHRA in an online ceremony and panel discussion together with @CNN. Tune in at 5pm GMT+1 (11am GMT-5)" (2:02:42, United Nations).