Problem retrieving datetime

I have a problem retrieving the dates in my Rest API.

I insert a data and the datetime is automatically filled in my DB. for instance.

2017-09-27T23:16:46.000Zthis value that is auto generated and i can see it with mysql workbench.

But when I retrieve with my API which is a basic query like this:

select * from inv;

It returns me 2017-09-27T21:16:46.000Zwith two hours less than the value of the database.

What could be the problem?

I insert two images so you can see the table and the API response.

Greetings and thank you.

EDIT:

This is the code I use to launch the request to the DB:

    function getInvTop(req, res) {

        if (connection)
        {

            connection.query('SELECT * FROM invjuan WHERE attrName = "sensor2" ORDER BY recvTime DESC LIMIT 15', function(err, rows) {
                if(err)
                {
                    throw err;
                    console.log('Error al Conectar' + error);
                }
                else
                {
                    res.status(200).json(rows);
                }
            });
        }
    }

For the answer for now I just call the method from Postman.

As a client I am using Angular4, I don't know if the correct thing is to format the date from it.

If I run this query it gives me the following error:

SELECT recvTimeTs, CONVERT_TZ('recvTime','GMT','MET'), fiwareServicePath, entityId, entityType, attrName, attrType, attrValue, attrMd FROM iof.invjuan WHERE attrName = "sensor2" ORDER BY recvTime DESC LIMIT 15;