diff --git a/test/utils_test.dart b/test/utils_test.dart
index 75a5d03..ec8d6e1 100644
--- a/test/utils_test.dart
+++ b/test/utils_test.dart
@@ -1,5 +1,7 @@
 import 'dart:typed_data';
 
+import 'package:intl/date_symbol_data_local.dart';
+import 'package:intl/intl.dart';
 import 'package:minio/src/utils.dart';
 import 'package:test/test.dart';
 
@@ -25,6 +27,20 @@ void testRfc7231Time() {
       expect(parseRfc7231Time(timeStringUtc), equals(timeUtc));
       expect(parseRfc7231Time(timeStringUtc).isUtc, isTrue);
     });
+
+    test(
+      'works for non en-US locale', () async {
+        initializeDateFormatting('pt_BR');
+        Intl.withLocale(
+          'pt_BR',
+          ()
+          {
+            expect(parseRfc7231Time(timeStringUtc), equals(timeUtc));
+            expect(parseRfc7231Time(timeStringUtc).isUtc, isTrue);
+          }
+        );
+      }
+    );
   });
 
   group('toRfc7231Time', () {
@@ -35,6 +51,19 @@ void testRfc7231Time() {
     test('works for GMT time', () {
       expect(toRfc7231Time(timeUtc), equals(timeStringUtc));
     });
+
+    test(
+      'works for non en-US locale', () async {
+        initializeDateFormatting('pt_BR');
+        Intl.withLocale(
+          'pt_BR',
+          ()
+          {
+            expect(toRfc7231Time(timeUtc), equals(timeStringUtc));
+          }
+        );
+      }
+    );
   });
 }