Represents a Date with an optional time.

import Date
import DateOrDateTime
import Time


justADate : DateOrDateTime.DateOrDateTime
justADate =
    DateOrDateTime.Date (Date.fromRataDie 738433)


aDateWithATime : DateOrDateTime.DateOrDateTime
aDateWithATime =
    DateOrDateTime.DateTime (Time.millisToPosix 1664987219000)


justADate |> dateOrDateTimeToIso8601String
--> "2022-10-05"


aDateWithATime |> dateOrDateTimeToIso8601String
--> "2022-10-05T16:26:59.000Z"

A helper for converting to ISO-8601 formatted Strings Date or DateTime Strings.