Json can't directly support "Data"?

I don’t understand the tittle.

Hi @lilchris,

Json can’t directly support “Data”?

Can you please provide some more detail on this ?

Thanks,
Shubham Ranjan
Curriculum Support Engineer

Sorry for the word of “Date ”,and now I know that there is no the type of “Date” in the answers of “According to the JSON spec, which of the following data types are directly supported by JSON?”.
Sorry for my ignorance.