diff --git a/src/dateUtils.js b/src/dateUtils.js
index cbe4cef..7d2f3e6 100644
--- a/src/dateUtils.js
+++ b/src/dateUtils.js
@@ -1,34 +1,34 @@
-/* global ProcessMaker*/
-import moment from 'moment-timezone';
+/* global ProcessMaker */
+import moment from "moment-timezone";
 
-moment.tz.setDefault(getTimezone())
+moment.tz.setDefault(getTimezone());
 
 const startsWithNumbers = /^\d{4}-/;
 
 function getProcessMakerUserValue(key) {
-  if (typeof ProcessMaker !== 'undefined' && ProcessMaker.user) {
+  if (typeof ProcessMaker !== "undefined" && ProcessMaker.user) {
     return ProcessMaker.user[key];
   }
 }
 
 export function getTimezone() {
-  return getProcessMakerUserValue('timezone') || moment.tz.guess();
+  return getProcessMakerUserValue("timezone") || "UTC";
 }
 
 export function getLang() {
-  return getProcessMakerUserValue('lang') || 'en';
+  return getProcessMakerUserValue("lang") || "en";
 }
 
 export function getUserDateFormat() {
-  if (typeof ProcessMaker !== 'undefined' && ProcessMaker.user && ProcessMaker.user.datetime_format) {
+  if (typeof ProcessMaker !== "undefined" && ProcessMaker?.user?.datetime_format) {
     return ProcessMaker.user.datetime_format.replace(/[\sHh:msaAzZ]/g, '');
   }
 
-  return 'MM/DD/YYYY';
+  return "MM/DD/YYYY";
 }
 
 export function getUserDateTimeFormat() {
-  return getProcessMakerUserValue('datetime_format') || 'MM/DD/YYYY h:mm A';
+  return getProcessMakerUserValue("datetime_format") || "MM/DD/YYYY h:mm A";
 }
 
 export function isValidDate(date, format = getUserDateFormat()) {
@@ -43,12 +43,12 @@ export function formatIfDate(string) {
     return string;
   }
 
-  d = moment(string, 'YYYY-MM-DDTHH:mm:ss.SSSZ', true);
+  d = moment(string, "YYYY-MM-DDTHH:mm:ss.SSSZ", true);
   if (d.isValid()) {
     return d.format(getUserDateTimeFormat());
   }
-  
-  d = moment(string, 'YYYY-MM-DD', true);
+
+  d = moment(string, "YYYY-MM-DD", true);
   if (d.isValid()) {
     return d.format(getUserDateFormat());
   }