[locale] ja: Define the last day of 'Heisei' Era (#5476)

diff --git a/src/locale/ja.js b/src/locale/ja.js
index 227591055b33052a840c966726af6c5e09e32b36..abe921ad46d268a50aceebc1d6264e2fbd2ef511 100644 (file)
--- a/src/locale/ja.js
+++ b/src/locale/ja.js
@@ -15,6 +15,7 @@ export default moment.defineLocale('ja', {
         },
         {
             since: '1989-01-08',
+            until: '2019-04-30',
             offset: 1,
             name: '平成',
             narrow: '㍻',