TimeSpan and Point in kml files

[Stadly]

When converting the following kml file to gpx, the time information is lost.

<?xml version="1.0" encoding="UTF-8"?>
<kml xmlns="http://www.opengis.net/kml/2.2" 
   xmlns:gx="http://www.google.com/kml/ext/2.2">
   <Document>
      <Placemark>
         <TimeSpan>
            <begin>2019-04-30T20:35:42.388Z</begin>
            <end>2019-05-01T10:00:22.000Z</end>
         </TimeSpan>
         <Point>
            <coordinates>10.760289199999999,59.9298459,0</coordinates>
         </Point>
      </Placemark>
   </Document>
</kml>

Converted to gpx:

<?xml version="1.0" encoding="UTF-8"?>
<gpx version="1.0" creator="GPSBabel - http://www.gpsbabel.org" xmlns="http://www.topografix.com/GPX/1/0">
  <time>2020-01-29T11:13:04.529Z</time>
  <bounds minlat="59.929845900" minlon="10.760289200" maxlat="59.929845900" maxlon="10.760289200"/>
  <wpt lat="59.929845900" lon="10.760289200">
    <ele>0.000</ele>
  </wpt>
</gpx>

Since gpx does not support timespan for a waypoint, the best solution is probably to create a track instead:

<?xml version="1.0" encoding="UTF-8"?>
<gpx version="1.0" creator="GPSBabel - http://www.gpsbabel.org" xmlns="http://www.topografix.com/GPX/1/0">
  <time>2020-01-29T11:11:55.929Z</time>
  <bounds minlat="59.929845900" minlon="10.760289200" maxlat="59.929845900" maxlon="10.760289200"/>
  <trk>
    <trkseg>
      <trkpt lat="59.929845900" lon="10.760289200">
        <ele>0.000</ele>
        <time>2019-04-30T20:35:42.388Z</time>
      </trkpt>
      <trkpt lat="59.929845900" lon="10.760289200">
        <ele>0.000</ele>
        <time>2019-05-01T03:18:02.194Z</time>
      </trkpt>
    </trkseg>
  </trk>
</gpx>

[GPSBabelDeveloper]

In general, we don't have internal concepts of timespans for exactly this kind of reason - they translate poorly to less functional formats. You might have a timespan with a style that interpolates icons, for example and we just have no way to write that most GPSes, for example.

This is an area for development for a new volunteer. Marking as enhancement request.

[robertlipe]

Closing as an inactive/unstaffed area for new development.