From 81ea1f6961ac55cfe4f6b3473e693ea94187e3a0 Mon Sep 17 00:00:00 2001
From: =?UTF-8?q?Hanno=20J=2E=20G=C3=B6decke?= <die.drei99@yahoo.de>
Date: Mon, 18 Dec 2023 13:20:10 +0100
Subject: [PATCH] detect if date is NaN

---
 src/libs/DateUtils.ts       | 12 +++++++++++-
 tests/unit/DateUtilsTest.js |  5 +++++
 2 files changed, 16 insertions(+), 1 deletion(-)

diff --git a/src/libs/DateUtils.ts b/src/libs/DateUtils.ts
index 16978787806e..17739d63c9c7 100644
--- a/src/libs/DateUtils.ts
+++ b/src/libs/DateUtils.ts
@@ -33,6 +33,7 @@ import ONYXKEYS from '@src/ONYXKEYS';
 import {SelectedTimezone, Timezone} from '@src/types/onyx/PersonalDetails';
 import * as CurrentDate from './actions/CurrentDate';
 import * as Localize from './Localize';
+import Log from './Log';
 
 type CustomStatusTypes = (typeof CONST.CUSTOM_STATUS_TYPES)[keyof typeof CONST.CUSTOM_STATUS_TYPES];
 type TimePeriod = 'AM' | 'PM';
@@ -91,7 +92,16 @@ function setLocale(localeString: Locale) {
 function getLocalDateFromDatetime(locale: Locale, datetime?: string, currentSelectedTimezone: SelectedTimezone = timezone.selected): Date {
     setLocale(locale);
     if (!datetime) {
-        return utcToZonedTime(new Date(), currentSelectedTimezone);
+        const res = utcToZonedTime(new Date(), currentSelectedTimezone);
+        if (Number.isNaN(res.getTime())) {
+            Log.warn('DateUtils.getLocalDateFromDatetime: utcToZonedTime returned an invalid date. Returning current date.', {
+                locale,
+                datetime,
+                currentSelectedTimezone,
+            });
+            return new Date();
+        }
+        return res;
     }
     const parsedDatetime = new Date(`${datetime}Z`);
     return utcToZonedTime(parsedDatetime, currentSelectedTimezone);
diff --git a/tests/unit/DateUtilsTest.js b/tests/unit/DateUtilsTest.js
index 0303085f1172..7480da456d7f 100644
--- a/tests/unit/DateUtilsTest.js
+++ b/tests/unit/DateUtilsTest.js
@@ -52,6 +52,11 @@ describe('DateUtils', () => {
         expect(tzFormat(localDate, CONST.DATE.FNS_TIMEZONE_FORMAT_STRING, {timeZone: timezone})).toEqual('2022-11-06T16:00:00-08:00');
     });
 
+    it('should fallback to current date when getLocalDateFromDatetime is failing', () => {
+        const localDate = DateUtils.getLocalDateFromDatetime(LOCALE, undefined, 'InvalidTimezone');
+        expect(localDate.getTime()).not.toBeNaN();
+    });
+
     it('should return the date in calendar time when calling datetimeToCalendarTime', () => {
         const today = setMinutes(setHours(new Date(), 14), 32);
         expect(DateUtils.datetimeToCalendarTime(LOCALE, today)).toBe('Today at 2:32 PM');