{
  "resourceType": "StructureDefinition",
  "id": "1362d493-0567-4074-861f-ba6789d26f98",
  "text": {
    "status": "generated",
    "div": "<div xmlns=\"http://www.w3.org/1999/xhtml\">to do</div>"
  },
  "extension": [
    {
      "url": "http://hl7.org/fhir/StructureDefinition/structuredefinition-standards-status",
      "valueCode": "normative"
    },
    {
      "url": "http://hl7.org/fhir/StructureDefinition/structuredefinition-normative-version",
      "valueCode": "4.0.0"
    }
  ],
  "url": "http://hl7.org/fhir/StructureDefinition/instant",
  "version": "4.0.1",
  "name": "instant",
  "status": "active",
  "date": "2019-10-31T22:29:23+00:00",
  "publisher": "HL7 FHIR Standard",
  "contact": [
    {
      "telecom": [
        {
          "system": "url",
          "value": "http://hl7.org/fhir"
        }
      ]
    }
  ],
  "description": "Base StructureDefinition for instant Type: An instant in time - known at least to the second",
  "fhirVersion": "4.0.1",
  "kind": "primitive-type",
  "abstract": false,
  "type": "instant",
  "baseDefinition": "http://hl7.org/fhir/StructureDefinition/Element",
  "derivation": "specialization",
  "differential": {
    "element": [
      {
        "id": "instant",
        "path": "instant",
        "short": "Primitive Type instant",
        "definition": "An instant in time - known at least to the second",
        "comment": "Note: This is intended for where precisely observed times are required, typically system logs etc., and not human-reported times - for them, see date and dateTime (which can be as precise as instant, but is not required to be) below. Time zone is always required",
        "min": 0,
        "max": "*"
      },
      {
        "id": "instant.value",
        "path": "instant.value",
        "representation": [
          "xmlAttr"
        ],
        "short": "Primitive value for instant",
        "definition": "Primitive value for instant",
        "min": 0,
        "max": "1",
        "type": [
          {
            "extension": [
              {
                "url": "http://hl7.org/fhir/StructureDefinition/structuredefinition-fhir-type",
                "valueUrl": "instant"
              },
              {
                "url": "http://hl7.org/fhir/StructureDefinition/regex",
                "valueString": "([0-9]([0-9]([0-9][1-9]|[1-9]0)|[1-9]00)|[1-9]000)-(0[1-9]|1[0-2])-(0[1-9]|[1-2][0-9]|3[0-1])T([01][0-9]|2[0-3]):[0-5][0-9]:([0-5][0-9]|60)(\\.[0-9]+)?(Z|(\\+|-)((0[0-9]|1[0-3]):[0-5][0-9]|14:00))"
              }
            ],
            "code": "http://hl7.org/fhirpath/System.DateTime"
          }
        ]
      }
    ]
  }
}