diff --git a/json/json-core/src/main/scala/io/sphere/json/FromJSON.scala b/json/json-core/src/main/scala/io/sphere/json/FromJSON.scala
index 5ce8f3d5..75e1f80d 100644
--- a/json/json-core/src/main/scala/io/sphere/json/FromJSON.scala
+++ b/json/json-core/src/main/scala/io/sphere/json/FromJSON.scala
@@ -391,8 +391,10 @@ object FromJSON extends FromJSONInstances {
       .appendPattern("'T'[HH[:mm[:ss]]]")
       .appendFraction(time.temporal.ChronoField.NANO_OF_SECOND, 0, 9, true)
       .optionalStart()
-      .appendOffset("+HHmm", "Z")
+      .appendOffset("+HH:MM", "Z")
       .optionalEnd()
+      .optionalStart()
+      .appendOffset("+HHmm", "Z")
       .optionalEnd()
       .parseDefaulting(time.temporal.ChronoField.MONTH_OF_YEAR, 1L)
       .parseDefaulting(time.temporal.ChronoField.DAY_OF_MONTH, 1L)
diff --git a/json/json-core/src/test/scala/io/sphere/json/DateTimeParsingSpec.scala b/json/json-core/src/test/scala/io/sphere/json/DateTimeParsingSpec.scala
index 562e9c3b..06aa68de 100644
--- a/json/json-core/src/test/scala/io/sphere/json/DateTimeParsingSpec.scala
+++ b/json/json-core/src/test/scala/io/sphere/json/DateTimeParsingSpec.scala
@@ -168,6 +168,22 @@ class DateTimeParsingSpec extends AnyWordSpec with Matchers {
         Instant.parse("2004-06-09T12:24:48.501Z"))
     }
 
+    "accept a year month day with hour, minute, second, and an offset containing a colon" in {
+      javaInstantReader.read(JString("2004-06-09T12:24:48+08:00")) shouldBe Valid(
+        Instant.parse("2004-06-09T04:24:48Z"))
+    }
+    "accept a year month day with hour, minute, second, and an offset of zero containing a colon" in {
+      javaInstantReader.read(JString("2004-06-09T12:24:48+00:00")) shouldBe Valid(
+        Instant.parse("2004-06-09T12:24:48Z"))
+    }
+    "accept a year month day with hour, minute, second, and a negative colon offset" in {
+      javaInstantReader.read(JString("2004-06-09T12:24:48-08:00")) shouldBe Valid(
+        Instant.parse("2004-06-09T20:24:48Z"))
+    }
+    "accept a year month day with hour, minute, second, and an offset of hours only" in {
+      javaInstantReader.read(JString("2004-06-09T12:24:48+00")) shouldBe Valid(
+        Instant.parse("2004-06-09T12:24:48Z"))
+    }
   }
 
 }