diff --git a/test_archivemail b/test_archivemail
index dd68318..4f90519 100755
--- a/test_archivemail
+++ b/test_archivemail
@@ -501,15 +501,17 @@ class TestOptionParser(unittest.TestCase):
 class TestIsTooOld(unittest.TestCase):
     def testVeryOld(self):
         """with max_days=360, should be true for these dates > 1 year"""
+        ctime = time.time()
         for years in range(1, 10):
-            time_msg = time.time() - (years * 365 * 24 * 60 * 60)
+            time_msg = ctime - (years * 365 * 24 * 60 * 60)
             assert archivemail.is_older_than_days(time_message=time_msg,
                 max_days=360)
 
     def testOld(self):
         """with max_days=14, should be true for these dates > 14 days"""
+        ctime = time.time()
         for days in range(14, 360):
-            time_msg = time.time() - (days * 24 * 60 * 60)
+            time_msg = ctime - (days * 24 * 60 * 60)
             assert archivemail.is_older_than_days(time_message=time_msg,
                 max_days=14)