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diff --git a/test/suite/intl402/ch12/12.3/12.3.2_FDT_7_a_iv.js b/test/suite/intl402/ch12/12.3/12.3.2_FDT_7_a_iv.js
new file mode 100644
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+++ b/test/suite/intl402/ch12/12.3/12.3.2_FDT_7_a_iv.js
@@ -0,0 +1,32 @@
+// Copyright 2012 Mozilla Corporation. All rights reserved.
+// This code is governed by the BSD license found in the LICENSE file.
+
+/**
+ * @description Tests that format uses a proleptic Gregorian calendar with no year 0.
+ * @author Norbert Lindenberg
+ */
+
+var dates = [
+    0, // January 1, 1970
+    -62151602400000, // in June 1 BC
+    -8640000000000000 // beginning of ECMAScript time
+];
+
+var format = new Intl.DateTimeFormat(["en-US"], {year: "numeric", month: "long", timeZone: "UTC"});
+
+// this test requires a Gregorian calendar, which we usually find in the US
+if (format.resolvedOptions().calendar !== "gregory") {
+    $ERROR("Internal error: Didn't find Gregorian calendar");
+}
+
+dates.forEach(function (date) {
+    var year = new Date(date).getUTCFullYear();
+    var expectedYear = year <= 0 ? 1 - year : year;
+    var expectedYearString = expectedYear.toLocaleString(["en-US"], {useGrouping: false});
+    var dateString = format.format(date);
+    if (dateString.indexOf(expectedYearString) === -1) {
+        $ERROR("Formatted year doesn't contain expected year – expected " +
+            expectedYearString + ", got " + dateString + ".");
+    }
+});
+