How to format hAxis to appear dd / MM / yyyy

On google chart I'm having trouble representing the hAxis with the dd/MM/yyyy hh:mm:ss data. The following command did not work:

hAxis:
{
  title: 'Tempo',
  titleTextStyle:
  {
    color: '#ff0000'
  },
  gridlines:
  {
    count: -1
  },
  format: 'dd/MM/yyyy HH:mm:ss',
  useFormatFromData: true
},
...

The graphic appears but the horizontal axis is not represented in this way.