=== prewikka/views/messagelisting.py
==================================================================
--- prewikka/views/messagelisting.py	(revision 7285)
+++ prewikka/views/messagelisting.py	(local)
@@ -69,7 +69,23 @@
         t = time.localtime(self._t)
         t = list(t)
         t[self._index] += value
-        t = time.mktime(t)
+
+        try:
+            t = time.mktime(t)
+            
+        # Implementation specific: mktime might trigger an OverflowError
+        # if the year member is out of range. If this happen, we adjust
+        # the setting to a year known to work.
+        except OverflowError:
+            if t[0] >= 2038:
+                t = time.mktime([2038, 0, 0, 0, 0, 0, 0, 0, 0])
+
+            elif t[0] < 1970:
+                t = time.mktime([1970, 0, 0, 0, 0, 0, 0, 0, 0])
+
+            else:
+                raise OverflowError
+        
         return _MyTime(t)
 
     def __sub__(self, value):