2021-04-12 14:38:19 UTC
That, at least, was the date I found when I did a simple search.
However, at least one source says he died on Nov. 21st.
What's truly strange, though, is that while every source seems to claim he died in 479 BCE, I can't find any specific ceremonies that were planned for this year. (But I DID find mentions of such ceremonies that happened prior to this year.) I don't get it.
In the meantime, here are some recent news stories:
"Disorder Will Come - As Confucius Warned" Gold Eagle
"Confucius' 76th Generation Descendant to Star in Taiwanese Comedy" Taiwan News
"Confucianism Has Become Political Punchbag in South Korea" The Economist
And, from last July: "Was This Ancient Taoist the First Philosopher of Disability?" The New York Times