From d4dfba48d8f633a57d77573da5f36e47fbf51a5e Mon Sep 17 00:00:00 2001
From: Thomas Citharel <tcit@tcit.fr>
Date: Mon, 22 Nov 2021 20:00:01 +0100
Subject: [PATCH] Fix error page when ends_on date is null

Closes #936

Signed-off-by: Thomas Citharel <tcit@tcit.fr>
---
 js/src/filters/datetime.ts | 4 ++--
 1 file changed, 2 insertions(+), 2 deletions(-)

diff --git a/js/src/filters/datetime.ts b/js/src/filters/datetime.ts
index e5fdb2725..bdc14e7d3 100644
--- a/js/src/filters/datetime.ts
+++ b/js/src/filters/datetime.ts
@@ -56,7 +56,7 @@ const SHORT_TIME_FORMAT_OPTIONS: DateTimeFormatOptions = {
 
 function formatDateTimeString(
   value: string,
-  timeZone: string | undefined = undefined,
+  timeZone: string | null | undefined = undefined,
   showTime = true,
   dateFormat = "long"
 ): string {
@@ -68,7 +68,7 @@ function formatDateTimeString(
     options = {
       ...options,
       ...(isLongFormat ? LONG_TIME_FORMAT_OPTIONS : SHORT_TIME_FORMAT_OPTIONS),
-      timeZone,
+      timeZone: timeZone || undefined,
     };
   }
   const format = new Intl.DateTimeFormat(locale(), options);