diff --git a/src/malli/transform.cljc b/src/malli/transform.cljc
index f13075e1b..b35d4f013 100644
--- a/src/malli/transform.cljc
+++ b/src/malli/transform.cljc
@@ -98,7 +98,16 @@
 #?(:clj
    (def ^DateTimeFormatter +string->date-format+
      (-> (DateTimeFormatterBuilder.)
-         (.appendPattern "yyyy-MM-dd['T'HH:mm:ss[.SSS][XXXX][XXXXX]]")
+         (.appendPattern "yyyy-MM-dd['T'HH:mm:ss]")
+         (.optionalStart)
+         (.appendFraction ChronoField/MICRO_OF_SECOND, 0, 9, true)
+         (.optionalEnd)
+         (.optionalStart)
+         (.appendOffset "+HHMMss", "Z")
+         (.optionalEnd)
+         (.optionalStart)
+         (.appendOffset "+HH:MM:ss", "Z")
+         (.optionalEnd)
          (.parseDefaulting ChronoField/HOUR_OF_DAY 0)
          (.parseDefaulting ChronoField/OFFSET_SECONDS 0)
          (.toFormatter))))
diff --git a/test/malli/transform_test.cljc b/test/malli/transform_test.cljc
index 50fb81455..b22365532 100644
--- a/test/malli/transform_test.cljc
+++ b/test/malli/transform_test.cljc
@@ -51,10 +51,21 @@
 
 (deftest string->date
   (is (= #inst "2018-04-27T18:25:37Z" (mt/-string->date "2018-04-27T18:25:37Z")))
+  (is (= #inst "2018-04-27T18:25:37.100Z" (mt/-string->date "2018-04-27T18:25:37.1Z")))
+  (is (= #inst "2018-04-27T18:25:37.123Z" (mt/-string->date "2018-04-27T18:25:37.123Z")))
+  (is (= #inst "2018-04-27T18:25:37.123Z" (mt/-string->date "2018-04-27T18:25:37.123456Z")))
+  (is (= #inst "2018-04-27T18:25:37.123456Z" (mt/-string->date "2018-04-27T18:25:37.123456Z")))
   (is (= #inst "2018-04-27T00:00:00Z" (mt/-string->date "2018-04-27")))
   (is (= #inst "2018-04-27T05:00:00Z" (mt/-string->date "2018-04-27T08:00:00+03:00")))
   (is (= #inst "2018-04-27T18:25:37Z" (mt/-string->date "2018-04-27T18:25:37.000Z")))
   (is (= #inst "2018-04-27T18:25:37Z" (mt/-string->date "2018-04-27T18:25:37.000+0000")))
+  (is (= #inst "2018-04-27T18:25:37.100Z" (mt/-string->date "2018-04-27T18:25:37.1+0000")))
+  (is (= #inst "2018-04-27T18:25:37.123Z" (mt/-string->date "2018-04-27T18:25:37.123+0000")))
+  (is (= #inst "2018-04-27T18:25:37.123Z" (mt/-string->date "2018-04-27T18:25:37.123456+0000")))
+  (is (= #inst "2018-04-27T18:25:37.123456Z" (mt/-string->date "2018-04-27T18:25:37.123456+0000")))
+  (is (= #inst "2018-04-27T18:25:37.123Z" (mt/-string->date "2018-04-27T18:25:37.123+0000")))
+  (is (= #inst "2018-04-27T18:25:37.123Z" (mt/-string->date "2018-04-27T20:25:37.123+0200")))
+  (is (= #inst "2018-04-27T18:25:37.123Z" (mt/-string->date "2018-04-27T16:25:37.123-0200")))
   (is (= #inst "2014-02-18T18:25:37Z" (mt/-string->date #inst "2014-02-18T18:25:37Z")))
   (is (= #inst "2018-04-27T00:00:00Z" (mt/-string->date #inst "2018-04-27")))
   (is (= #inst "2018-04-27T05:00:00Z" (mt/-string->date #inst "2018-04-27T08:00:00+03:00")))