diff --git a/doc/man1/timew-report.1.adoc b/doc/man1/timew-report.1.adoc
index 3bcbe526..fe75c1a6 100644
--- a/doc/man1/timew-report.1.adoc
+++ b/doc/man1/timew-report.1.adoc
@@ -27,5 +27,6 @@ The value has to be a range hint, see timew-hints(7).
 Defaults to `:all`
 
 **reports.**__<name>__**.range**::
-Set the date range for report _name_, where _name_ is the name of the report executable without its extension (i.e. a report executable 'foo.py' is referred to by 'foo').
+Set the date range for report _name_, used if no _range_ is given on the command line.
+Here, _name_ is the name of the report executable without its extension (i.e. a report executable 'foo.py' is referred to by 'foo').
 The value has to be a range hint, see timew-hints(7).
diff --git a/test/extensions.t b/test/extensions.t
index 29343e8e..481a3f43 100755
--- a/test/extensions.t
+++ b/test/extensions.t
@@ -1,4 +1,9 @@
 #!/usr/bin/env python3
+import json
+import os
+import sys
+import unittest
+from datetime import datetime, timedelta
 
 ###############################################################################
 #
@@ -26,11 +31,6 @@
 #
 ###############################################################################
 
-import os
-import unittest
-
-import sys
-
 # Ensure python finds the local simpletap module
 sys.path.append(os.path.dirname(os.path.abspath(__file__)))
 
@@ -57,6 +57,58 @@ class TestExtensions(TestCase):
         code, out, err = self.t('report ext')
         self.assertIn('test works', out)
 
+    def test_default_range_is_applied_when_no_range_given_on_command_line(self):
+        """Default range is applied when no range is given on the command line"""
+        self.t.add_default_extension("debug.py")
+
+        self.t.config("reports.debug.range", "':day'")
+
+        now = datetime.now()
+        now_utc = now.utcnow()
+
+        yesterday_one_hour_before_utc = now_utc - timedelta(hours=1, days=1)
+        yesterday_two_hours_before_utc = now_utc - timedelta(hours=2, days=1)
+
+        self.t("track {:%Y-%m-%dT%H:%M:%S}Z - {:%Y-%m-%dT%H:%M:%S}Z foo".format(yesterday_two_hours_before_utc, yesterday_one_hour_before_utc))
+        self.t("track {:%Y-%m-%dT%H:%M:%S}Z bar".format(now_utc))
+
+        code, out, err = self.t("debug")
+
+        j = json.loads(out)
+
+        self.assertEqual(len(j), 1)
+        self.assertOpenInterval(j[0],
+                                  expectedStart="{:%Y%m%dT%H%M%S}Z".format(now_utc),
+                                  expectedTags=["bar"])
+
+    def test_default_range_is_overridden_when_range_given_on_command_line(self):
+        """Default range is overridden when range is given on the command line"""
+        self.t.add_default_extension("debug.py")
+
+        self.t.config("reports.debug.range", "':day'")
+
+        now = datetime.now()
+        now_utc = now.utcnow()
+
+        yesterday_one_hour_before_utc = now_utc - timedelta(hours=1, days=1)
+        yesterday_two_hours_before_utc = now_utc - timedelta(hours=2, days=1)
+
+        self.t("track {:%Y-%m-%dT%H:%M:%S}Z - {:%Y-%m-%dT%H:%M:%S}Z foo".format(yesterday_two_hours_before_utc, yesterday_one_hour_before_utc))
+        self.t("track {:%Y-%m-%dT%H:%M:%S}Z bar".format(now_utc))
+
+        code, out, err = self.t("debug :all")
+
+        j = json.loads(out)
+
+        self.assertEqual(len(j), 2)
+        self.assertClosedInterval(j[0],
+                                  expectedStart="{:%Y%m%dT%H%M%S}Z".format(yesterday_two_hours_before_utc),
+                                  expectedEnd="{:%Y%m%dT%H%M%S}Z".format(yesterday_one_hour_before_utc),
+                                  expectedTags=["foo"])
+        self.assertOpenInterval(j[1],
+                                expectedStart="{:%Y%m%dT%H%M%S}Z".format(now_utc),
+                                expectedTags=["bar"])
+
 
 if __name__ == "__main__":
     from simpletap import TAPTestRunner
diff --git a/test/test_extensions/debug.py b/test/test_extensions/debug.py
new file mode 100755
index 00000000..7f0c1ca1
--- /dev/null
+++ b/test/test_extensions/debug.py
@@ -0,0 +1,11 @@
+#!/usr/bin/env python3
+
+import sys
+
+for line in sys.stdin:
+    # skip configuration
+    if line == "\n":
+        break
+
+for line in sys.stdin:
+    print(line.strip())