Hi,

I would use either the Google services or the Microsoft services for this.

Google: https://developers.google.com/maps/documentation/timezone/intro
Microsoft: https://blogs.bing.com/maps/2018-08/bing-maps-time-zone-api-working-with-time-zones 

You can consume these services via REST

Ricardo Pereira wrote:

Hi, 

   Using js (calculate the distance in km).

Coding:

function getDistanceFromLatLonInKm(lat1,lon1,lat2,lon2) {
  var R = 6371; // Radius of the earth in km
  var dLat = deg2rad(lat2-lat1);  // deg2rad below
  var dLon = deg2rad(lon2-lon1); 
  var a = 
    Math.sin(dLat/2) * Math.sin(dLat/2) +
    Math.cos(deg2rad(lat1)) * Math.cos(deg2rad(lat2)) * 
    Math.sin(dLon/2) * Math.sin(dLon/2)
    ; 
  var c = 2 * Math.atan2(Math.sqrt(a), Math.sqrt(1-a)); 
  var d = R * c; // Distance in km
  return d;
}

function deg2rad(deg) {
  return deg * (Math.PI/180)
}