Index: bin/stamp
===================================================================
--- bin/stamp	(revision 35)
+++ bin/stamp	(revision 58)
@@ -3,5 +3,5 @@
 import sys
 from datetime import datetime
-from stamper import DATETIME_FORMAT, Stamper
+from stamper import Stamper
 
 
@@ -24,5 +24,5 @@
     if len(sys.argv) == 1:
         # stamp!
-        s.stamp(datetime.today().strftime(DATETIME_FORMAT), 
+        s.stamp(datetime.today().strftime(s.datetime_format),
                 None, None, None)
 
@@ -35,5 +35,5 @@
         customer = sys.argv[1]
         description = ' '.join(sys.argv[2:])
-        s.stamp(current_start, datetime.today().strftime(DATETIME_FORMAT),
+        s.stamp(current_start, datetime.today().strftime(s.datetime_format),
                 customer, description)