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diff --git a/js/src/tests/test262/intl402/Temporal/ZonedDateTime/prototype/weekOfYear/gregory-iso-weekofyear.js b/js/src/tests/test262/intl402/Temporal/ZonedDateTime/prototype/weekOfYear/gregory-iso-weekofyear.js
new file mode 100644
index 0000000000..bf1ddaaaeb
--- /dev/null
+++ b/js/src/tests/test262/intl402/Temporal/ZonedDateTime/prototype/weekOfYear/gregory-iso-weekofyear.js
@@ -0,0 +1,30 @@
+// |reftest| skip-if(!this.hasOwnProperty('Temporal')) -- Temporal is not enabled unconditionally
+// Copyright (C) 2024 Igalia, S.L. All rights reserved.
+// This code is governed by the BSD license found in the LICENSE file.
+
+/*---
+esid: sec-temporal.zoneddatetime.prototype.weekofyear
+description: >
+  In the ISO 8601 week calendar, calendar week number 1 of a calendar year is 
+  the week including the first Thursday of that year (based on the principle 
+  that a week belongs to the same calendar year as the majority of its calendar 
+  days). Because of this, some calendar days of the first calendar week of a 
+  calendar year may be part of the preceding date calendar year, and some 
+  calendar days of the last calendar week of a calendar year may be part of
+  the next calendar year.
+features: [Temporal]
+---*/
+
+// 
+
+let calendar = new Temporal.Calendar("gregory");
+const date = new Temporal.ZonedDateTime(1_609_504_496_987_654_321n, "UTC", calendar);
+
+assert.sameValue(date.weekOfYear, 1);
+
+calendar = new Temporal.Calendar("iso8601");
+const isodate = new Temporal.ZonedDateTime(1_609_504_496_987_654_321n, "UTC", calendar);
+
+assert.sameValue(isodate.weekOfYear, 53);
+
+reportCompare(0, 0);