From 2299fae9f0e895b5440e02b32c182bdbe8868654 Mon Sep 17 00:00:00 2001
From: Yonas Habteab <yonas.habteab@icinga.com>
Date: Wed, 10 May 2023 11:35:54 +0200
Subject: [PATCH 1/2] Include timezone name in serialized datetime format

---
 src/Contract/Frequency.php | 2 +-
 1 file changed, 1 insertion(+), 1 deletion(-)

diff --git a/src/Contract/Frequency.php b/src/Contract/Frequency.php
index be66bd6..2235787 100644
--- a/src/Contract/Frequency.php
+++ b/src/Contract/Frequency.php
@@ -8,7 +8,7 @@
 interface Frequency extends JsonSerializable
 {
     /** @var string Format for representing datetimes when serializing the frequency to JSON */
-    public const SERIALIZED_DATETIME_FORMAT = 'Y-m-d\TH:i:s.uP';
+    public const SERIALIZED_DATETIME_FORMAT = 'Y-m-d\TH:i:s.ue';
 
     /**
      * Get whether the frequency is due at the specified time

From 2f2ab24135d3bd1b5cdd4e26337088addf34a66c Mon Sep 17 00:00:00 2001
From: Yonas Habteab <yonas.habteab@icinga.com>
Date: Fri, 12 May 2023 15:00:54 +0200
Subject: [PATCH 2/2] Don't reset start date to `UTC`

---
 src/RRule.php | 4 +---
 1 file changed, 1 insertion(+), 3 deletions(-)

diff --git a/src/RRule.php b/src/RRule.php
index c5eb35d..d71e754 100644
--- a/src/RRule.php
+++ b/src/RRule.php
@@ -286,9 +286,7 @@ public function jsonSerialize(): array
 
         $start = $this->getStart();
         if ($start) {
-            $data['start'] = (clone $start)
-                ->setTimezone(new DateTimeZone('UTC'))
-                ->format(static::SERIALIZED_DATETIME_FORMAT);
+            $data['start'] = $start->format(static::SERIALIZED_DATETIME_FORMAT);
         }
 
         return $data;