diff --git a/test/data/tz/london.geojson b/test/data/tz/london.geojson
new file mode 100644
index 000000000..fb7709e26
--- /dev/null
+++ b/test/data/tz/london.geojson
@@ -0,0 +1,7 @@
+{
+"type": "FeatureCollection",
+                                                                                
+"features": [
+{ "type": "Feature", "properties": { "tzid": "Europe\/London" }, "geometry": { "type": "Polygon", "coordinates": [ [ [ -0.212860107421875, 51.468766318140872 ], [ -0.212860107421875, 51.573868997085803 ], [ -0.014076232910156, 51.573868997085803 ], [ -0.014076232910156, 51.468766318140872 ], [ -0.212860107421875, 51.468766318140872 ] ] ] } }
+]
+}