diff --git a/apps/mobile/locales/provider.tsx b/apps/mobile/locales/provider.tsx
index 66eff0e..94fe189 100644
--- a/apps/mobile/locales/provider.tsx
+++ b/apps/mobile/locales/provider.tsx
@@ -19,7 +19,7 @@ const defaultLanguage = ['en', 'vi'].includes(deviceLanguage)
   ? deviceLanguage
   : 'en'
 
-dayjsExtended.locale(deviceLanguage)
+dayjsExtended.locale(defaultLanguage)
 
 const messages = {
   en: enMessages,