diff --git a/beets/dbcore/query.py b/beets/dbcore/query.py
index 3014e73a5..4c109c5b8 100644
--- a/beets/dbcore/query.py
+++ b/beets/dbcore/query.py
@@ -534,7 +534,7 @@ class Period(object):
     """
 
     precisions = ('year', 'month', 'day', 'hour', 'minute')
-    date_formats = (('%Y',), ('%Y-%m',), ('%Y-%m-%d',), ('%Y-%m-%dT%H', 'dummy-format'), ('%Y-%m-%dT%H:%M',))
+    date_formats = (('%Y',), ('%Y-%m',), ('%Y-%m-%d',), ('%Y-%m-%dT%H', '%Y-%m-%d %H'), ('%Y-%m-%dT%H:%M',))
 
     def __init__(self, date, precision):
         """Create a period with the given date (a `datetime` object) and
diff --git a/test/test_datequery.py b/test/test_datequery.py
index b1398201c..743688b4d 100644
--- a/test/test_datequery.py
+++ b/test/test_datequery.py
@@ -59,6 +59,7 @@ class DateIntervalTest(unittest.TestCase):
         self.assertExcludes('1999-12..2000-02', '2000-03-01T00:00:00')
 
     def test_hour_precision_intervals(self):
+        # test with 'T' separator
         self.assertExcludes('2000-01-01T12..2000-01-01T13',
                             '2000-01-01T11:59:59')
         self.assertContains('2000-01-01T12..2000-01-01T13',
@@ -74,6 +75,12 @@ class DateIntervalTest(unittest.TestCase):
         self.assertExcludes('2000-01-01T12..2000-01-01T13',
                             '2000-01-01T14:30:00')
 
+        # test with ' ' (space) separator
+        self.assertExcludes('2000-01-01 12..2000-01-01 13',
+                            '2000-01-01T11:59:59')
+        self.assertContains('2000-01-01 12..2000-01-01 13',
+                            '2000-01-01T12:00:00')
+
     def test_minute_precision_intervals(self):
         self.assertExcludes('2000-01-01T12:30..2000-01-01T12:31',
                             '2000-01-01T12:29:59')