diff --git a/package.json b/package.json
index 81e5a8465..4deef9d0e 100644
--- a/package.json
+++ b/package.json
@@ -4,7 +4,7 @@
     "node": "20.8.0"
   },
   "packageManager": "yarn@3.6.4",
-  "version": "1.54.0-web-4274-copy-billing.6",
+  "version": "1.54.0-local-data-source.1",
   "description": "Tidepool data visualization for diabetes device data.",
   "keywords": [
     "data visualization"
diff --git a/src/utils/DataUtil.js b/src/utils/DataUtil.js
index 61e5875a7..eeff643f4 100644
--- a/src/utils/DataUtil.js
+++ b/src/utils/DataUtil.js
@@ -109,6 +109,33 @@ export class DataUtil {
     this.endTimer('init total');
   };
 
+  addLocalData = (patientId, returnData = false, localDataSource) => {
+    let data;
+    try {
+      // eslint-disable-next-line global-require, import/no-unresolved
+      data = require('../../local/rawData.json');
+      let dataSource = localDataSource === 'export' ? 'the Tidepool export service' : 'the Tidepool API';
+
+      if (data?.data?.current?.data) {
+        data = _.flatten(_.values(data.data.current.data));
+        dataSource = 'a Tidepool Web console export';
+      } else if (data?.[0].dataset) {
+        data = _.flatten(_.map(data, v => v.data));
+        dataSource = 'a Tidepool Account Tool export';
+      }
+
+      this.log(`Loading dataset provided by ${dataSource}`);
+    } catch (e) {
+      data = { data: [] };
+    }
+
+    if (localDataSource === 'export') {
+      data = _.map(data, d => ({ ...d, duration: d.type === 'basal' && d.duration < 1000 ? d.duration * MS_IN_MIN : d.duration }));
+    }
+
+    return this.addData(data, patientId, returnData);
+  };
+
   addData = (rawData = [], patientId, returnData = false) => {
     this.startTimer('addData');
 
diff --git a/storybook/preview.js b/storybook/preview.js
index 2ac6e18ec..1ec06ec92 100644
--- a/storybook/preview.js
+++ b/storybook/preview.js
@@ -2,28 +2,9 @@ import React from 'react';
 
 import DataUtil from '../src/utils/DataUtil';
 
-let data;
-try {
-  // eslint-disable-next-line global-require, import/no-unresolved
-  data = require('../local/rawData.json');
-  let dataSource = 'the Tidepool API';
-
-  if (data?.data?.current?.data) {
-    data = _.flatten(_.values(data.data.current.data));
-    dataSource = 'a Tidepool Web console export';
-  } else if (data?.[0].dataset) {
-    data = _.flatten(_.map(data, v => v.data));
-    dataSource = 'a Tidepool Account Tool export';
-  }
-
-  console.log(`Loading dataset provided by ${dataSource}`);
-} catch (e) {
-  data = { data: [] };
-}
-
 const patientId = 'abc123';
 const dataUtil = new DataUtil();
-dataUtil.addData(data, patientId);
+dataUtil.addLocalData(patientId);
 
 const props = {
   dataUtil,