From 7e2aaf7ce653cfb4b8ba40943bc8bc12a7c002e9 Mon Sep 17 00:00:00 2001
From: XuYui <xuyu061229@163.com>
Date: Thu, 22 Oct 2026 02:49:28 -0700
Subject: [PATCH] fix(en): don't read an out-of-range day before a year as a
 two-digit year

"May 32, 2021" was rejected by ENMonthNameMiddleEndianParser (day > 31),
but ENMonthNameParser then matched "May 32" as month + two-digit year and
returned 2032-05-01, dropping the explicit ", 2021".

Skip the two-digit year in ENMonthNameParser when it is followed by a
comma and a four-digit year.

Fixes #677
---
 src/locales/en/parsers/ENMonthNameParser.ts |  7 +++++++
 test/en/en_month_name_middle_endian.test.ts | 14 ++++++++++++++
 2 files changed, 21 insertions(+)

diff --git a/src/locales/en/parsers/ENMonthNameParser.ts b/src/locales/en/parsers/ENMonthNameParser.ts
index cd6e89b97..23597437c 100644
--- a/src/locales/en/parsers/ENMonthNameParser.ts
+++ b/src/locales/en/parsers/ENMonthNameParser.ts
@@ -51,6 +51,13 @@ export default class ENMonthNameParser extends AbstractParserWithWordBoundaryChe
         result.start.assign("month", month);
 
         if (match[YEAR_GROUP]) {
+            // Skip the case where the two-digit "year" is an out-of-range day followed by
+            // the real year (ex: May 32, 2021)
+            const nextText = context.text.substring(match.index + match[0].length);
+            if (/^\d{2}$/.test(match[YEAR_GROUP]) && /^\s*,\s*\d{4}(?!\d)/.test(nextText)) {
+                return null;
+            }
+
             const year = parseYear(match[YEAR_GROUP]);
             result.start.assign("year", year);
         } else {
diff --git a/test/en/en_month_name_middle_endian.test.ts b/test/en/en_month_name_middle_endian.test.ts
index 877da3873..22fb392a2 100644
--- a/test/en/en_month_name_middle_endian.test.ts
+++ b/test/en/en_month_name_middle_endian.test.ts
@@ -384,3 +384,17 @@ test("Test - Impossible Dates (Strict Mode)", () => {
 
     testUnexpectedResult(chrono.strict, "February 151998", new Date(2014, 7, 10));
 });
+
+test("Test - Impossible Dates (Casual Mode)", () => {
+    testUnexpectedResult(chrono, "January 32, 2021", new Date(2020, 0, 1));
+
+    testUnexpectedResult(chrono, "May 32, 2021", new Date(2020, 0, 1));
+
+    testUnexpectedResult(chrono, "May 99, 2021", new Date(2020, 0, 1));
+
+    testUnexpectedResult(chrono, "May 33,2021", new Date(2020, 0, 1));
+
+    testSingleCase(chrono, "The event is on May 32, 2021 now", new Date(2020, 0, 1), (result) => {
+        expect(result.text).toBe("now");
+    });
+});