From ab33e46789d178d16126b9306eedb1137f4a3243 Mon Sep 17 00:00:00 2001
From: Marcus Andersson <marcus.andersson@grafana.com>
Date: Thu, 8 Oct 2020 09:47:08 +0200
Subject: [PATCH] Bugfix: improved the way of checking if browser supports
 Intl.DateTimeFormat (#28086)

---
 packages/grafana-data/src/datetime/formats.ts | 6 +++++-
 1 file changed, 5 insertions(+), 1 deletion(-)

diff --git a/packages/grafana-data/src/datetime/formats.ts b/packages/grafana-data/src/datetime/formats.ts
index 79344a77385..2c8ae0e3623 100644
--- a/packages/grafana-data/src/datetime/formats.ts
+++ b/packages/grafana-data/src/datetime/formats.ts
@@ -88,7 +88,7 @@ export function localTimeFormat(
   locale?: string | string[] | null,
   fallback?: string
 ): string {
-  if (!window.Intl) {
+  if (missingIntlDateTimeFormatSupport()) {
     return fallback ?? DEFAULT_SYSTEM_DATE_FORMAT;
   }
 
@@ -115,3 +115,7 @@ export function localTimeFormat(
 }
 
 export const systemDateFormats = new SystemDateFormatsState();
+
+const missingIntlDateTimeFormatSupport = (): boolean => {
+  return !('DateTimeFormat' in Intl) || !('formatToParts' in Intl.DateTimeFormat.prototype);
+};