diff --git a/public/pages/DefineDetector/components/Timestamp/Timestamp.tsx b/public/pages/DefineDetector/components/Timestamp/Timestamp.tsx
index 48431fe8..6c454306 100644
--- a/public/pages/DefineDetector/components/Timestamp/Timestamp.tsx
+++ b/public/pages/DefineDetector/components/Timestamp/Timestamp.tsx
@@ -52,9 +52,15 @@ export function Timestamp(props: TimestampProps) {
     get(opensearchState, 'dataTypes.date', []) as string[]
   );
 
-  const timeStampFieldOptions = isEmpty(dateFields)
+  const dateNanoFields = Array.from(
+    get(opensearchState, 'dataTypes.date_nanos', []) as string[]
+  );
+
+  const allDateFields = dateFields.concat(dateNanoFields);
+
+  const timeStampFieldOptions = isEmpty(allDateFields)
     ? []
-    : dateFields.map((dateField) => ({ label: dateField }));
+    : allDateFields.map((dateField) => ({ label: dateField }));
 
   return (
     <ContentPanel
diff --git a/public/redux/reducers/opensearch.ts b/public/redux/reducers/opensearch.ts
index fd153bca..4a9a3d32 100644
--- a/public/redux/reducers/opensearch.ts
+++ b/public/redux/reducers/opensearch.ts
@@ -45,6 +45,7 @@ export interface DataTypes {
   half_float?: string[];
   boolean?: string[];
   date?: string[];
+  date_nanos?: string[];
   keyword?: string[];
   text?: string[];
   integer_range?: string[];