diff --git a/src/lib/datetime.js b/src/lib/datetime.js
index 177079cc..d37cd847 100644
--- a/src/lib/datetime.js
+++ b/src/lib/datetime.js
@@ -49,6 +49,10 @@ export function getTimezoneOffsetMinutes(timezone) {
     return getUtcOffsetMinutesByUtcOffset(utcOffset);
 }
 
+export function getBrowserTimezoneOffset() {
+    return getUtcOffsetByUtcOffsetMinutes(getBrowserTimezoneOffsetMinutes());
+}
+
 export function getBrowserTimezoneOffsetMinutes() {
     return -new Date().getTimezoneOffset();
 }
diff --git a/src/lib/i18n.js b/src/lib/i18n.js
index b478706b..4ea9a31f 100644
--- a/src/lib/i18n.js
+++ b/src/lib/i18n.js
@@ -16,6 +16,8 @@ import {
     getCurrentDateTime,
     getTimezoneOffset,
     getTimezoneOffsetMinutes,
+    getBrowserTimezoneOffset,
+    getBrowserTimezoneOffsetMinutes,
     getDateTimeFormatType
 } from './datetime.js';
 
@@ -433,8 +435,8 @@ function getDateTimeFormat(translateFn, allFormatMap, allFormatArray, localeForm
 }
 
 function getAllTimezones(includeSystemDefault, translateFn) {
-    const defaultTimezoneOffset = getTimezoneOffset();
-    const defaultTimezoneOffsetMinutes = getTimezoneOffsetMinutes();
+    const defaultTimezoneOffset = getBrowserTimezoneOffset();
+    const defaultTimezoneOffsetMinutes = getBrowserTimezoneOffsetMinutes();
     const allTimezones = timezone.all;
     const allTimezoneInfos = [];