diff --git a/README.md b/README.md
index 3551681..a3e406f 100644
--- a/README.md
+++ b/README.md
@@ -216,7 +216,7 @@ into properly formatted ISO date/time strings that match FHIR specifications:
 | Function | Format | Example output
 |----------|--------|---------------
 | `->timestamp` | `yyyy-MM-dd'T'HH:mm:ssXXX` | `2014-08-05T10:49:37-04:00`
-| `->local-timestamp` | `yyyy-MM-dd'T'HH:mm:ss` | `2014-08-05T10:49:37-04:00`
+| `->local-timestamp` | `yyyy-MM-dd'T'HH:mm:ss` | `2014-08-06T10:01:22`
 | `->date` | `yyyy-MM-dd` | `2014-08-05`
 
 ##### Search Results
diff --git a/src/clj_hl7_fhir/util.clj b/src/clj_hl7_fhir/util.clj
index 631002b..c28c6a1 100644
--- a/src/clj_hl7_fhir/util.clj
+++ b/src/clj_hl7_fhir/util.clj
@@ -27,7 +27,7 @@
    will not include any timezone information and so is appropriate for local timezone
    date/times only."
   [^Date date]
-  (format-date date iso8601-timestamp))
+  (format-date date iso8601-local-timestamp))
 
 (defn ->date
   "returns an ISO8601 formatted date string for the given date object"