diff --git a/django/template/defaultfilters.py b/django/template/defaultfilters.py
index 1140f7ee40..cef314387a 100644
--- a/django/template/defaultfilters.py
+++ b/django/template/defaultfilters.py
@@ -643,7 +643,7 @@ def timesince(value, arg=None):
     if not value:
         return u''
     if arg:
-        return timesince(value, arg)
+        return timesince(arg, value)
     return timesince(value)
 timesince.is_safe = False
 
diff --git a/tests/regressiontests/defaultfilters/tests.py b/tests/regressiontests/defaultfilters/tests.py
index 42e9bcaeb3..1b659a91f4 100644
--- a/tests/regressiontests/defaultfilters/tests.py
+++ b/tests/regressiontests/defaultfilters/tests.py
@@ -373,15 +373,6 @@ u'12'
 >>> timesince(datetime.datetime.now() - datetime.timedelta(1))
 u'1 day'
 
->>> timesince(datetime.datetime(2005, 12, 29), datetime.datetime(2005, 12, 30))
-u'1 day'
-
->>> timeuntil(datetime.datetime.now() + datetime.timedelta(1))
-u'1 day'
-
->>> timeuntil(datetime.datetime(2005, 12, 30), datetime.datetime(2005, 12, 29))
-u'1 day'
-
 >>> default(u"val", u"default")
 u'val'
 
diff --git a/tests/regressiontests/templates/filters.py b/tests/regressiontests/templates/filters.py
index 5dbb8e7e23..c780a64baf 100644
--- a/tests/regressiontests/templates/filters.py
+++ b/tests/regressiontests/templates/filters.py
@@ -34,17 +34,11 @@ def get_filter_tests():
         'filter-timesince03' : ('{{ a|timesince }}', {'a': datetime.now() - timedelta(hours=1, minutes=25, seconds = 10)}, '1 hour, 25 minutes'),
 
         # Compare to a given parameter
-        'filter-timesince04' : ('{{ a|timesince:b }}', {'a':now - timedelta(days=2), 'b':now - timedelta(days=1)}, '1 day'),
-        'filter-timesince05' : ('{{ a|timesince:b }}', {'a':now - timedelta(days=2, minutes=1), 'b':now - timedelta(days=2)}, '1 minute'),
+        'filter-timesince04' : ('{{ a|timesince:b }}', {'a':now + timedelta(days=2), 'b':now + timedelta(days=1)}, '1 day'),
+        'filter-timesince05' : ('{{ a|timesince:b }}', {'a':now + timedelta(days=2, minutes=1), 'b':now + timedelta(days=2)}, '1 minute'),
 
         # Check that timezone is respected
-        'filter-timesince06' : ('{{ a|timesince:b }}', {'a':now_tz - timedelta(hours=8), 'b':now_tz}, '8 hours'),
-
-        # Regression for #7443
-        'filter-timesince07': ('{{ earlier|timesince }}', { 'earlier': now - timedelta(days=7) }, '1 week'),
-        'filter-timesince08': ('{{ earlier|timesince:now }}', { 'now': now, 'earlier': now - timedelta(days=7) }, '1 week'),
-        'filter-timesince09': ('{{ later|timesince }}', { 'later': now + timedelta(days=7) }, '0 minutes'),
-        'filter-timesince10': ('{{ later|timesince:now }}', { 'now': now, 'later': now + timedelta(days=7) }, '0 minutes'),
+        'filter-timesince06' : ('{{ a|timesince:b }}', {'a':now_tz + timedelta(hours=8), 'b':now_tz}, '8 hours'),
 
         # Default compare with datetime.now()
         'filter-timeuntil01' : ('{{ a|timeuntil }}', {'a':datetime.now() + timedelta(minutes=2, seconds = 10)}, '2 minutes'),
@@ -55,13 +49,6 @@ def get_filter_tests():
         'filter-timeuntil04' : ('{{ a|timeuntil:b }}', {'a':now - timedelta(days=1), 'b':now - timedelta(days=2)}, '1 day'),
         'filter-timeuntil05' : ('{{ a|timeuntil:b }}', {'a':now - timedelta(days=2), 'b':now - timedelta(days=2, minutes=1)}, '1 minute'),
 
-        # Regression for #7443
-        'filter-timeuntil06': ('{{ earlier|timeuntil }}', { 'earlier': now - timedelta(days=7) }, '0 minutes'),
-        'filter-timeuntil07': ('{{ earlier|timeuntil:now }}', { 'now': now, 'earlier': now - timedelta(days=7) }, '0 minutes'),
-        'filter-timeuntil08': ('{{ later|timeuntil }}', { 'later': now + timedelta(days=7) }, '1 week'),
-        'filter-timeuntil09': ('{{ later|timeuntil:now }}', { 'now': now, 'later': now + timedelta(days=7) }, '1 week'),
-
-
         'filter-addslash01': ("{% autoescape off %}{{ a|addslashes }} {{ b|addslashes }}{% endautoescape %}", {"a": "<a>'", "b": mark_safe("<a>'")}, ur"<a>\' <a>\'"),
         'filter-addslash02': ("{{ a|addslashes }} {{ b|addslashes }}", {"a": "<a>'", "b": mark_safe("<a>'")}, ur"&lt;a&gt;\&#39; <a>\'"),