Reformat the modification date string

src/wiki-normalizer.ts

@@ -53,6 +53,7 @@ class WikiNormalizer extends Transform {
       }
 
       // build object
+      const date = new Date();
       result = {
         id: obj.id,
         provider: 'wikidata',
@@ -64,7 +65,7 @@ class WikiNormalizer extends Transform {
         start: this.getStart(obj),
         end: this.getEnd(obj),
         typology: this.getInstanceOf(obj),
-        modification_date: (new Date()).toTimeString(),
+        modification_date: `${date.getFullYear()}-${date.getMonth()}-${date.getDate()}`,
         location: `${lat}, ${lon}`,
       };
     } catch (err) {