diff --git a/lib/gpx/geo_json.rb b/lib/gpx/geo_json.rb
index 2c9f263..327206c 100644
--- a/lib/gpx/geo_json.rb
+++ b/lib/gpx/geo_json.rb
@@ -157,7 +157,8 @@ def point_to_waypoint(point, gpx_file)
         GPX::Waypoint.new(gpx_file: gpx_file,
                           lon: point[0],
                           lat: point[1],
-                          elevation: point[2])
+                          elevation: point[2],
+                          time: point[3])
       end
 
       # Given a GeoJSON coorindate point, and
@@ -167,7 +168,8 @@ def point_to_track_point(point, seg)
         GPX::TrackPoint.new(segment: seg,
                             lon: point[0],
                             lat: point[1],
-                            elevation: point[2])
+                            elevation: point[2],
+                            time: point[3])
       end
 
       # Returns all features in the passed geojson