Well it looks like the day (Holocaust Memorial Day) is still being observed in January:
https://nationaltoday.com/holocaust-memorial-day/
https://www.townandcountrymag.com/socie ... lace-2023/
https://www.dw.com/en/holocaust-remembr ... a-64532572
Auschwitz Liberation Day:
https://nationaltoday.com/auschwitz-liberation-day/