diff --git a/backend/src/plugins/Tags.ts b/backend/src/plugins/Tags.ts
index 43057703..01c95f65 100644
--- a/backend/src/plugins/Tags.ts
+++ b/backend/src/plugins/Tags.ts
@@ -133,7 +133,7 @@ export class TagsPlugin extends ZeppelinPlugin<TConfigSchema> {
       },
 
       countdown(toDate) {
-        const target = this.parseDateTime(toDate);
+        const target = moment(this.parseDateTime(toDate));
 
         const now = moment();
         if (!target.isValid()) return "";