edtf/locale-data/en-US.json

Extended Date Time Format (EDTF) / ISO 8601-2 Parser and Library

{
  "locale": "en-US",

  "date": {
    "approximate": {
      "long": "circa %D",
      "medium": "ca. %D",
      "short": "c. %D"
    },
    "uncertain": {
      "long": "%D (unspecified)",
      "medium": "%D (?)",
      "short": "%D (?)"
    }
  }
}