From 01e21b89eefc32bcc4a92c3a82658cee139b6b2c Mon Sep 17 00:00:00 2001
From: Yen Chi Hsuan <yan12125@gmail.com>
Date: Mon, 8 Jun 2015 17:39:55 +0800
Subject: [PATCH] [noco] Skip invalid timestamps (closes #5826)

---
 youtube_dl/extractor/noco.py | 4 ++++
 1 file changed, 4 insertions(+)

diff --git a/youtube_dl/extractor/noco.py b/youtube_dl/extractor/noco.py
index 664dc81d4..5bbd2dcf6 100644
--- a/youtube_dl/extractor/noco.py
+++ b/youtube_dl/extractor/noco.py
@@ -166,6 +166,10 @@ class NocoIE(InfoExtractor):
         self._sort_formats(formats)
 
         timestamp = parse_iso8601(show.get('online_date_start_utc'), ' ')
+
+        if timestamp is not None and timestamp < 0:
+            timestamp = None
+
         uploader = show.get('partner_name')
         uploader_id = show.get('partner_key')
         duration = float_or_none(show.get('duration_ms'), 1000)