diff --git a/weboob/applications/qvideoob/minivideo.py b/weboob/applications/qvideoob/minivideo.py
index 60fc39ac..5840b29d 100644
--- a/weboob/applications/qvideoob/minivideo.py
+++ b/weboob/applications/qvideoob/minivideo.py
@@ -32,7 +32,7 @@ class MiniVideo(QFrame):
         self.video = video
         self.ui.titleLabel.setText(video.title)
         self.ui.backendLabel.setText(backend.name)
-        self.ui.durationLabel.setText('%d:%02d:%02d' % (video.duration/3600, (video.duration%3600)/60, video.duration%60))
+        self.ui.durationLabel.setText(unicode(video.duration))
         self.ui.authorLabel.setText(unicode(video.author))
         self.ui.dateLabel.setText(video.date and unicode(video.date) or '')
         if video.rating_max:
diff --git a/weboob/applications/qvideoob/video.py b/weboob/applications/qvideoob/video.py
index 647c8dd8..bdd32229 100644
--- a/weboob/applications/qvideoob/video.py
+++ b/weboob/applications/qvideoob/video.py
@@ -32,7 +32,7 @@ class Video(QDialog):
         self.setWindowTitle("Video - %s" % video.title)
         self.ui.urlEdit.setText(video.url)
         self.ui.titleLabel.setText(video.title)
-        self.ui.durationLabel.setText('%d:%02d:%02d' % (video.duration/3600, (video.duration%3600)/60, video.duration%60))
+        self.ui.durationLabel.setText(unicode(video.duration))
         self.ui.authorLabel.setText(unicode(video.author))
         self.ui.dateLabel.setText(unicode(video.date))
         if video.rating_max:
diff --git a/weboob/backends/ina/pages/video.py b/weboob/backends/ina/pages/video.py
index 8c7a5689..7552e80c 100644
--- a/weboob/backends/ina/pages/video.py
+++ b/weboob/backends/ina/pages/video.py
@@ -59,7 +59,8 @@ class VideoPage(BasePage):
             if m:
                 day, month, year = [int(s) for s in m.group(1).split('/')]
                 date = datetime.datetime(year, month, day)
-                return date, int(m.group(2)) * 60 + int(m.group(3))
+                duration = datetime.timedelta(minutes=m.group(3), seconds=m.group(2))
+                return date, duration
         else:
             return None
 
diff --git a/weboob/backends/youjizz/browser.py b/weboob/backends/youjizz/browser.py
index 52d85366..65fdc05b 100644
--- a/weboob/backends/youjizz/browser.py
+++ b/weboob/backends/youjizz/browser.py
@@ -16,6 +16,7 @@
 # Foundation, Inc., 59 Temple Place - Suite 330, Boston, MA 02111-1307, USA.
 
 
+import datetime
 import re
 import urllib
 from logging import warning
@@ -62,13 +63,12 @@ class YoujizzBrowser(BaseBrowser):
         m = re.search(r'<strong>.*Runtime.*</strong>(.+)<br.*>', data)
         if m:
             minutes, seconds = (int(v) for v in unicode(m.group(1).strip()).split(':'))
-            duration = minutes * 60 + seconds
         else:
-            duration = 0
+            minutes = seconds = 0
         video._id = _id
         video.title = title
         video.url = _get_url()
-        video.duration = duration
+        video.duration = datetime.timedelta(minutes=minutes, seconds=seconds)
         return video
 
     @check_domain
diff --git a/weboob/backends/youporn/pages/video.py b/weboob/backends/youporn/pages/video.py
index 0b9733ef..f0e251b1 100644
--- a/weboob/backends/youporn/pages/video.py
+++ b/weboob/backends/youporn/pages/video.py
@@ -68,13 +68,13 @@ class VideoPage(PornPage):
             value = span.tail.strip()
 
             if name == 'Duration:':
-                duration = 0
+                seconds = minutes = 0
                 for word in value.split():
                     if word.endswith('min'):
-                        duration += 60 * int(word[:word.find('min')])
+                        minutes = int(word[:word.find('min')])
                     elif word.endswith('sec'):
-                        duration += int(word[:word.find('sec')])
-                v.duration = duration
+                        seconds = int(word[:word.find('sec')])
+                v.duration = datetime.timedelta(minutes=minutes, seconds=seconds)
             elif name == 'Submitted:':
                 author = li.find('i')
                 if author is None:
diff --git a/weboob/backends/youtube/backend.py b/weboob/backends/youtube/backend.py
index 1620a18f..9a2314d8 100644
--- a/weboob/backends/youtube/backend.py
+++ b/weboob/backends/youtube/backend.py
@@ -63,8 +63,9 @@ class YoutubeBackend(BaseBackend, ICapVideo):
             yield YoutubeVideo(entry.id.text.split('/')[-1].decode('utf-8'),
                                title=entry.media.title.text.decode('utf-8').strip(),
                                author=author,
-                               duration=int(entry.media.duration.seconds.decode('utf-8').strip()),
-                               thumbnail_url=entry.media.thumbnail[0].url.decode('utf-8').strip())
+                               duration=datetime.timedelta(seconds=entry.media.duration.seconds.decode('utf-8').strip()),
+                               thumbnail_url=entry.media.thumbnail[0].url.decode('utf-8').strip(),
+                               )
 
     def iter_page_urls(self, mozaic_url):
         raise NotImplementedError()
diff --git a/weboob/capabilities/video.py b/weboob/capabilities/video.py
index 9ae28fad..fd1acaff 100644
--- a/weboob/capabilities/video.py
+++ b/weboob/capabilities/video.py
@@ -23,13 +23,13 @@ __all__ = ['BaseVideo', 'ICapVideo']
 
 
 class BaseVideo(object):
-    def __init__(self, _id, title=None, url=None, author=None, duration=0, date=None,
+    def __init__(self, _id, title=None, url=None, author=None, duration=None, date=None,
                  rating=0.0, rating_max=0.0, thumbnail_url=None, nsfw=False):
         self.id = unicode(_id)
         self.title = title
         self.url = url
         self.author = author
-        self.duration = int(duration)
+        self.duration = duration
         self.date = date
         self.rating = float(rating)
         self.rating_max = float(rating_max)
@@ -41,10 +41,6 @@ class BaseVideo(object):
         """Overloaded in child classes provided by backends."""
         raise NotImplementedError()
 
-    @property
-    def formatted_duration(self):
-        return '%d:%02d:%02d' % (self.duration / 3600, (self.duration % 3600 / 60), self.duration % 60)
-
     @property
     def page_url(self):
         return self.id2url(self.id)