diff --git a/index.js b/index.js
index e365a04..04d6619 100644
--- a/index.js
+++ b/index.js
@@ -247,8 +247,9 @@ export default class TidepoolDataTools {
 
   static tidepoolProcessor(processorConfig = {}) {
     return es.mapSync((data) => {
-      // Synthesize the 'localTime' field
-      this.addLocalTime(data);
+      if (!processorConfig.excludeLocalTime) {
+        this.addLocalTime(data);
+      }
       // Stringify objects configured with { "stringify": true }
       this.stringifyFields(data);
       // Convert BGL data to mg/dL if configured to do so
diff --git a/package.json b/package.json
index ee48a72..e322e91 100644
--- a/package.json
+++ b/package.json
@@ -1,6 +1,6 @@
 {
   "name": "@tidepool/data-tools",
-  "version": "2.4.2",
+  "version": "2.5.0",
   "description": "Export data from the Tidepool API to various file formats",
   "repository": {
     "type": "git",