1 files changed, 35 insertions, 0 deletions
diff --git a/js/src/tests/test262/intl402/DateTimeFormat/prototype/resolvedOptions/offset-timezone-change.js b/js/src/tests/test262/intl402/DateTimeFormat/prototype/resolvedOptions/offset-timezone-change.js
new file mode 100644
index 0000000000..714286e287
--- /dev/null
+++ b/js/src/tests/test262/intl402/DateTimeFormat/prototype/resolvedOptions/offset-timezone-change.js
@@ -0,0 +1,35 @@
+// Copyright 2023 the V8 project authors. All rights reserved.
+// This code is governed by the BSD license found in the LICENSE file.
+/*---
+esid: sec-createdatetimeformat
+description: Tests that offset time zones are correctly normalized in resolvedOptions() output.
+---*/
+let validOffsetTimeZones = {
+    '-00': '+00:00',
+    '-00:00': '+00:00',
+    '−00:00': '+00:00',
+    '+00': '+00:00',
+    '+0000': '+00:00',
+    '+0300': '+03:00',
+    '+03:00': '+03:00',
+    '+13:00': '+13:00',
+    '+2300': '+23:00',
+    '-07:00': '-07:00',
+    '-14': '-14:00',
+    '-2100': '-21:00',
+    '−2200': '-22:00',
+    '+0103': '+01:03',
+    '+15:59': '+15:59',
+    '+2227': '+22:27',
+    '-02:32': '-02:32',
+    '-1701': '-17:01',
+    '-22:23': '-22:23',
+    '−22:53': '-22:53',
+};
+Object.keys(validOffsetTimeZones).forEach((timeZone) => {
+    let df = new Intl.DateTimeFormat(undefined, {timeZone});
+    let expected = validOffsetTimeZones[timeZone];
+    assert.sameValue(df.resolvedOptions().timeZone, expected, timeZone);
+});
+
+reportCompare(0, 0);