In the event this question has (indeed) been asked before …my apologies (still learning how to use StackOverFlow)

Please let me know if there’s a Google/Spreadsheet "Function" that will provide a DD/MM/YYYY HH:MM:SS (readable) "Date" value into Column "B"?

I think the format is Json (not sure) …I’ve copied the date column into a "forum friendly" Google Sheet

Link to Google Sheet with Date "Column"

>Solution :

You may try:

=map(A2:A,lambda(Σ,if(Σ="",,epochtodate(--regexextract(Σ,"\d{10}")))))

• format the column to required date format accordingly