From 96b2003b2bd5089d1faafe262e96c7445c5c3349 Mon Sep 17 00:00:00 2001
From: Liam DeBeasi <liamdebeasi@users.noreply.github.com>
Date: Thu, 14 Apr 2022 22:54:11 +0545
Subject: [PATCH] fix(datetime): account for 30 and 45 minute timezones when
 getting current date (#25120)

resolves #25112
---
 core/src/components/datetime/utils/data.ts | 19 ++++++++++++++++++-
 1 file changed, 18 insertions(+), 1 deletion(-)

diff --git a/core/src/components/datetime/utils/data.ts b/core/src/components/datetime/utils/data.ts
index f3e860f4f9..853cc44962 100644
--- a/core/src/components/datetime/utils/data.ts
+++ b/core/src/components/datetime/utils/data.ts
@@ -27,7 +27,24 @@ export const getToday = () => {
    * there was a net change of zero hours from the
    * local date.
    */
-  date.setHours(date.getHours() - tzOffset / 60);
+  const adjustedHours = date.getHours() - tzOffset / 60;
+
+  /**
+   * Some timezones include minute adjustments
+   * such as 30 or 45 minutes.
+   * Example: India Standard Time
+   * Timezone offset: -330 = -5.5 hours.
+   *
+   * As a result, we need to make sure we also
+   * increment the minutes as well.
+   * List of timezones with 30 and 45 minute timezones:
+   * https://www.timeanddate.com/time/time-zones-interesting.html
+   */
+  const minutesRemainder = adjustedHours % 1;
+  const adjustedMinutes = date.getMinutes() + minutesRemainder * 60;
+  date.setHours(adjustedHours);
+  date.setMinutes(adjustedMinutes);
+
   return date.toISOString();
 };