anchor.diff:                "forecasts": [
                   {
                     "period": "PT24H",
  -                  "validFrom": "2017-05-10T00:00:00Z",
  -                  "validUntil": "2017-05-11T00:00:00Z",
  +                  "validFrom": "2017-05-10T00:00:00+01:00",
  +                  "validUntil": "2017-05-11T00:00:00+01:00",
                     "forecastLocation": [ -0.1248, 51.5081 ],
                     "airPollutionIndex": 3,
  -                  "publishedAt": "2017-05-10T05:00:00Z"
  -                },
  -                {
  -                  "period": "PT24H",
  -                  "validFrom": "2017-05-11T00:00:00Z",
  -                  "validUntil": "2017-05-12T00:00:00Z",
  +                  "publishedAt": "2017-05-10T06:00:00+01:00"
  +                },
  +                {
  +                  "period": "PT24H",
  +                  "validFrom": "2017-05-11T00:00:00+01:00",
  +                  "validUntil": "2017-05-12T00:00:00+01:00",
                     "forecastLocation": [ -0.1248, 51.5081 ],
                     "airPollutionIndex": 5,
  -                  "publishedAt": "2017-05-10T05:00:00Z"
  -                },
  -                {
  -                  "period": "PT24H",
  -                  "validFrom": "2017-05-12T00:00:00Z",
  -                  "validUntil": "2017-05-13T00:00:00Z",
  +                  "publishedAt": "2017-05-10T06:00:00+01:00"
  +                },
  +                {
  +                  "period": "PT24H",
  +                  "validFrom": "2017-05-12T00:00:00+01:00",
  +                  "validUntil": "2017-05-13T00:00:00+01:00",
                     "forecastLocation": [ -0.1248, 51.5081 ],
                     "airPollutionIndex": 3,
  -                  "publishedAt": "2017-05-10T05:00:00Z"
  -                },
  -                {
  -                  "period": "PT24H",
  -                  "validFrom": "2017-05-13T00:00:00Z",
  -                  "validUntil": "2017-05-14T00:00:00Z",
  +                  "publishedAt": "2017-05-10T06:00:00+01:00"
  +                },
  +                {
  +                  "period": "PT24H",
  +                  "validFrom": "2017-05-13T00:00:00+01:00",
  +                  "validUntil": "2017-05-14T00:00:00+01:00",
                     "forecastLocation": [ -0.1248, 51.5081 ],
                     "airPollutionIndex": 3,
  -                  "publishedAt": "2017-05-10T05:00:00Z"
  -                },
  -                {
  -                  "period": "PT24H",
  -                  "validFrom": "2017-05-14T00:00:00Z",
  -                  "validUntil": "2017-05-15T00:00:00Z",
  +                  "publishedAt": "2017-05-10T06:00:00+01:00"
  +                },
  +                {
  +                  "period": "PT24H",
  +                  "validFrom": "2017-05-14T00:00:00+01:00",
  +                  "validUntil": "2017-05-15T00:00:00+01:00",
                     "forecastLocation": [ -0.1248, 51.5081 ],
                     "airPollutionIndex": 3,
  -                  "publishedAt": "2017-05-10T05:00:00Z"
  +                  "publishedAt": "2017-05-10T06:00:00+01:00"
                   }
                 ]
               }
  
positive.code:     + Parameters
          + locatedAt: `-0.11,51.51` (string, required) - longitude,latitude;
          + fields: `pollenForecastRegionName,issuedAt,pollenIndex` (string, required) - comma separated list of [pollenForecastRegionName,issuedAt,pollenIndex] or single value;
          + timeZone: `Europe/Paris` (string, optional) - Time zone refers to the IANA Time Zone Database (TZDB).
  
  + Response 200 (application/json)
  
  
negative.code:     + Parameters
          + locatedAt: `-0.11,51.51` (string, required) - longitude,latitude;
          + fields: `airPollutionIndex,publishedAt` (string, required) - comma separated list of [airPollutionIndex,publishedAt] or single value;
          + timeZone: `Europe/London` (string, optional) - Time zone refers to the IANA Time Zone Database (TZDB).
  
  + Response 200 (application/json)
  
  