I do not receive the data in kibana

I am doing a project in which I interact with aws.

I am sending some data to iot aws:

{"location" : "6960,6960", "times" : "2017-04-30 18:22:55"}

I send a structure like that and in the aws CLI I see that it arrives.

Then I send it to the elasticsearch of aws and from there to kibana. I define the Elasticsearch indices in this way:

{
  "mappings": {
    "tesgps1": {
      "properties": {
        "location": {
          "type": "geo_point",
          "store": true
        },
        "times": {
          "type": "date",
          "format":"yyyy-MM-dd HH:mm:ss",
        }
      }
    }
 }
} 

And in kibana they appear, but the times are neither aggregable nor searchable:

I am new to the subject and I do not know where the fault is, if in the elasticsearch or in kibana