diff --git a/doc/src/sgml/func.sgml b/doc/src/sgml/func.sgml
index d73199fb20..5724b9b256 100644
--- a/doc/src/sgml/func.sgml
+++ b/doc/src/sgml/func.sgml
@@ -1,5 +1,5 @@
@@ -5005,6 +5005,15 @@ SELECT EXTRACT(EPOCH FROM TIMESTAMP WITH TIME ZONE '2001-02-16 20:38:40-08');
SELECT EXTRACT(EPOCH FROM INTERVAL '5 days 3 hours');
Result: 442800
+
+
+
+ Here is how you can convert an epoch value back to a time
+ stamp:
+
+
+
+SELECT TIMESTAMP WITH TIME ZONE 'epoch' + 982384720 * interval '1 second';