I often hear that one degree of longitude translates into 4 minutes of time. However in the real world is it the case that travelling from Rome to say Martinsicuro in Italy (a difference of about 1.417 degrees of longitude and a more northerly latitude) you lose the same time as you would by travelling to Scanno (similar difference in longitude viz-a-viz Rome but same latitude) or Sessa Aurunca (again similar difference in longitude viz-a-viz Rome but a more southerly latitude)? And what would the time loss be in each of the above cases viz-a-viz Rome?