Weather Gov Iso8601 Interval Structure

{
  "$schema": "https://json-structure.org/meta/core/v0/#",
  "$id": "https://raw.githubusercontent.com/api-evangelist/weather-gov/refs/heads/main/json-structure/weather-gov-iso8601-interval-structure.json",
  "name": "ISO8601Interval",
  "description": "A time interval in ISO 8601 format. This can be one of:\n\n    1. Start and end time\n    2. Start time and duration\n    3. Duration and end time\nThe string \"NOW\" can also be used in place of a start/end time.\n",
  "oneOf": [
    {
      "pattern": "^(\\d{4}-\\d{2}-\\d{2}T\\d{2}:\\d{2}:\\d{2}(Z|[+-]\\d{2}:?\\d{2}?)|NOW)\\/(\\d{4}-\\d{2}-\\d{2}T\\d{2}:\\d{2}:\\d{2}(Z|[+-]\\d{2}:?\\d{2}?)|NOW)$",
      "type": "string",
      "examples": [
        "2007-03-01T13:00:00Z/2008-05-11T15:30:00Z"
      ]
    },
    {
      "pattern": "^(\\d{4}-\\d{2}-\\d{2}T\\d{2}:\\d{2}:\\d{2}(Z|[+-]\\d{2}:?\\d{2}?)|NOW)\\/P(\\d+Y)?(\\d+M)?(\\d+D)?(T(\\d+H)?(\\d+M)?(\\d+S)?)?$",
      "type": "string",
      "examples": [
        "2007-03-01T13:00:00Z/P1Y2M10DT2H30M"
      ]
    },
    {
      "pattern": "^P(\\d+Y)?(\\d+M)?(\\d+D)?(T(\\d+H)?(\\d+M)?(\\d+S)?)?\\/(\\d{4}-\\d{2}-\\d{2}T\\d{2}:\\d{2}:\\d{2}(Z|[+-]\\d{2}:?\\d{2}?)|NOW)$",
      "type": "string",
      "examples": [
        "P1Y2M10DT2H30M/2008-05-11T15:30:00Z"
      ]
    }
  ]
}