> numbers are easier to standardize than dates
Is this a joke?
JSON numbers are....I don't know what they even are. JavaScript -- the originator of JSON -- can't support 64-bit integers in JSON. Nor can it support decimal fractions in JSON, despite JSON using decimals. And yet JSON numbers also aren'ty IEEE-754 floating point numbers, as they lack +/-Infinity and NaN.
JSON numbers are ill-defined and unique from every other "number" concept in any language or format.