diff --git a/yt_dlp/utils.py b/yt_dlp/utils.py index c2327ae1d..6cfbcdb8d 100644 --- a/yt_dlp/utils.py +++ b/yt_dlp/utils.py @@ -2574,7 +2574,9 @@ def strftime_or_none(timestamp, date_format, default=None): datetime_object = None try: if isinstance(timestamp, (int, float)): # unix timestamp - datetime_object = datetime.datetime.utcfromtimestamp(timestamp) + # Using naive datetime here can break timestamp() in Windows + # Ref: https://github.com/yt-dlp/yt-dlp/issues/5185, https://github.com/python/cpython/issues/94414 + datetime_object = datetime.datetime.fromtimestamp(timestamp, datetime.timezone.utc) elif isinstance(timestamp, str): # assume YYYYMMDD datetime_object = datetime.datetime.strptime(timestamp, '%Y%m%d') date_format = re.sub( # Support %s on windows