diff --git a/yt_dlp/extractor/microsoftembed.py b/yt_dlp/extractor/microsoftembed.py
index 7ad3517a5..79b8866e4 100644
--- a/yt_dlp/extractor/microsoftembed.py
+++ b/yt_dlp/extractor/microsoftembed.py
@@ -270,8 +270,7 @@ def _real_extract(self, url):
         metainfo = {
             'title': self._og_search_title(webpage),
             'description': self._og_search_description(webpage),
-            'timestamp': parse_iso8601(self._search_regex(
-                r'<meta\s+name="startDate"\s+content="([^"]+)"', webpage, 'date', default=None)),
+            'timestamp': parse_iso8601(self._html_search_meta('startDate', webpage, 'startDate')),
         }
 
         return self.url_result(