diff --git a/src/clojure/monger/joda_time.clj b/src/clojure/monger/joda_time.clj
index f60e772..e26ec6f 100644
--- a/src/clojure/monger/joda_time.clj
+++ b/src/clojure/monger/joda_time.clj
@@ -27,3 +27,25 @@
   java.util.Date
   (from-db-object [^java.util.Date input keywordize]
     (org.joda.time.DateTime. input)))
+
+
+
+;;
+;; Reader extensions
+;;
+
+(defmethod print-dup java.util.Date
+  [d out]
+  (.write out
+          (str "#="
+               `(java.util.Date. ~(.getYear d)
+                                 ~(.getMonth d)
+                                 ~(.getDate d)
+                                 ~(.getHours d)
+                                 ~(.getMinutes d)
+                                 ~(.getSeconds d)))))
+
+
+(defmethod print-dup org.joda.time.base.AbstractInstant
+  [d out]
+  (print-dup (.toDate d) out))
diff --git a/test/monger/test/lib_integration_test.clj b/test/monger/test/lib_integration_test.clj
index 58e17f2..c402a47 100644
--- a/test/monger/test/lib_integration_test.clj
+++ b/test/monger/test/lib_integration_test.clj
@@ -34,3 +34,9 @@
         output (from-db-object input false)]
     (is (instance? org.joda.time.DateTime output))
     (is (= input (.toDate ^DateTime output)))))
+
+
+(deftest test-reader-extensions
+  (let [^DateTime d (t/date-time 2011 10 13 23 55 0)]
+    (binding [*print-dup* true]
+      (pr-str d))))