Response dates do not come in ISO-8601 format

Today I sent a 'createPayment' request and here's what I received in the response:

{
'timeCreated': '2021-30-03T02:38:04.414Z'
}

ISO-8601 format is: Year-month-date
API's format is: Year-date-month

So those dates are not parsable using ISO-8601, at least on the sandbox env.
Does the LIVE environment have the same issue?