diff --git a/src/locale/ar-sa.js b/src/locale/ar-sa.js
index f543bac22..c65d2f9fb 100644
--- a/src/locale/ar-sa.js
+++ b/src/locale/ar-sa.js
@@ -17,7 +17,7 @@ const locale = {
     LLL: 'D MMMM YYYY HH:mm',
     LLLL: 'dddd D MMMM YYYY HH:mm'
   },
-  meridiem: hour => (hour > 12 ? 'م' : 'ص'),
+  meridiem: hour => (hour >= 12 ? 'م' : 'ص'),
   relativeTime: {
     future: 'في %s',
     past: 'منذ %s',
diff --git a/test/locale/ar-sa.test.js b/test/locale/ar-sa.test.js
index 1936f5086..808846e22 100644
--- a/test/locale/ar-sa.test.js
+++ b/test/locale/ar-sa.test.js
@@ -18,6 +18,23 @@ it('Meridiem', () => {
   dayjs.locale(locale)
   expect(dayjs('2020-01-01 03:00:00').locale('ar-sa').format('A')).toEqual('ص')
   expect(dayjs('2020-01-01 11:00:00').locale('ar-sa').format('A')).toEqual('ص')
+  expect(dayjs('2020-01-01 12:00:00').locale('ar-sa').format('A')).toEqual('م')
   expect(dayjs('2020-01-01 16:00:00').locale('ar-sa').format('A')).toEqual('م')
   expect(dayjs('2020-01-01 20:00:00').locale('ar-sa').format('A')).toEqual('م')
 })
+
+it('Meridiem - 12 PM should show م (PM)', () => {
+  dayjs.locale(locale)
+  // Test hour 12 (noon) - should show PM (م)
+  expect(dayjs('2025-10-28 12:41:00').locale('ar-sa').format('hh:mm a')).toBe('12:41 م')
+  expect(dayjs('2025-10-28 12:00:00').locale('ar-sa').format('hh:mm a')).toBe('12:00 م')
+  expect(dayjs('2025-10-28 12:59:59').locale('ar-sa').format('hh:mm a')).toBe('12:59 م')
+  // Test hour 0 (midnight) - should show AM (ص)
+  expect(dayjs('2025-10-28 00:41:00').locale('ar-sa').format('hh:mm a')).toBe('12:41 ص')
+  // Test hours 1-11 should show AM (ص)
+  expect(dayjs('2025-10-28 01:00:00').locale('ar-sa').format('hh:mm a')).toBe('01:00 ص')
+  expect(dayjs('2025-10-28 11:00:00').locale('ar-sa').format('hh:mm a')).toBe('11:00 ص')
+  // Test hours 13-23 should show PM (م)
+  expect(dayjs('2025-10-28 13:00:00').locale('ar-sa').format('hh:mm a')).toBe('01:00 م')
+  expect(dayjs('2025-10-28 23:00:00').locale('ar-sa').format('hh:mm a')).toBe('11:00 م')
+})