fix: Info.months for Islamic calendar (#1464)

Info.months for Islamic has duplicate month "Rabiʻ I" and also Islamic months order is incorrect. Fixed by changing the year from 2016 to 2009 which is the most recent year that Islamic and Gregorian months were sync.
moment · Aug 9, 2023 · f06788b · f06788b
1 parent 2411f6e
commit f06788b
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Showing 2 changed files with 3 additions and 3 deletions.
diff --git a/src/impl/locale.js b/src/impl/locale.js
@@ -120,7 +120,7 @@ function intlConfigString(localeStr, numberingSystem, outputCalendar) {
 function mapMonths(f) {
   const ms = [];
   for (let i = 1; i <= 12; i++) {
-    const dt = DateTime.utc(2016, i, 1);
+    const dt = DateTime.utc(2009, i, 1);
     ms.push(f(dt));
   }
   return ms;

diff --git a/test/info/listers.test.js b/test/info/listers.test.js
@@ -105,6 +105,8 @@ test("Info.months respects the numbering system", () => {
 
 test("Info.months respects the calendar", () => {
   expect(Info.months("long", { locale: "en", outputCalendar: "islamic" })).toEqual([
+    "Muharram",
+    "Safar",
     "Rabiʻ I",
     "Rabiʻ II",
     "Jumada I",
@@ -115,8 +117,6 @@ test("Info.months respects the calendar", () => {
     "Shawwal",
     "Dhuʻl-Qiʻdah",
     "Dhuʻl-Hijjah",
-    "Safar",
-    "Rabiʻ I",
   ]);
 });