From 3552841302537e890f9e9450c02968e609d3b1cd Mon Sep 17 00:00:00 2001
From: Jeff Harris <jeff@jeffharris.us>
Date: Sat, 25 Feb 2023 00:29:59 -0500
Subject: [PATCH 1/2] Replicate missing functionality.

https://github.com/FakerPHP/Faker/pull/480/files added optional countryCode parameter, to Core and Extension classes, but not the Provider class.
---
 src/Faker/Provider/DateTime.php      | 11 +++++++++--
 test/Faker/Provider/DateTimeTest.php | 11 +++++++++++
 2 files changed, 20 insertions(+), 2 deletions(-)

diff --git a/src/Faker/Provider/DateTime.php b/src/Faker/Provider/DateTime.php
index 46c3c90fec..44c5a5b0f8 100644
--- a/src/Faker/Provider/DateTime.php
+++ b/src/Faker/Provider/DateTime.php
@@ -330,13 +330,20 @@ public static function century()
     }
 
     /**
+     * @param string|null $countryCode
      * @return string
      *
      * @example 'Europe/Paris'
      */
-    public static function timezone()
+    public static function timezone(string $countryCode = null)
     {
-        return static::randomElement(\DateTimeZone::listIdentifiers());
+        if ($countryCode) {
+            $timezones = \DateTimeZone::listIdentifiers(\DateTimeZone::PER_COUNTRY, $countryCode);
+        } else {
+            $timezones = \DateTimeZone::listIdentifiers();
+        }
+
+        return static::randomElement($timezones);
     }
 
     /**
diff --git a/test/Faker/Provider/DateTimeTest.php b/test/Faker/Provider/DateTimeTest.php
index 5b0ce2bdf6..0dc446c648 100644
--- a/test/Faker/Provider/DateTimeTest.php
+++ b/test/Faker/Provider/DateTimeTest.php
@@ -281,4 +281,15 @@ public function testFixedSeedWithMaximumTimestamp(): void
         self::assertEquals($dateTimeThisYear, DateTimeProvider::dateTimeThisYear($max));
         mt_srand();
     }
+
+    public function testTimezone(): void
+    {
+        $timezone = DateTimeProvider::timezone();
+        $countryTimezone = DateTimeProvider::timezone('US');
+
+        self::assertIsString($timezone);
+        self::assertContains($timezone, \DateTimeZone::listIdentifiers());
+        self::assertIsString($countryTimezone);
+        self::assertContains($countryTimezone, \DateTimeZone::listIdentifiers(\DateTimeZone::PER_COUNTRY, 'US'));
+    }
 }

From ecb055ef32dd4d591c28b71d469640428cf13e01 Mon Sep 17 00:00:00 2001
From: Jeff Harris <jeff@jeffharris.us>
Date: Wed, 8 Mar 2023 15:59:58 -0500
Subject: [PATCH 2/2] remove line.

---
 src/Faker/Provider/DateTime.php | 1 -
 1 file changed, 1 deletion(-)

diff --git a/src/Faker/Provider/DateTime.php b/src/Faker/Provider/DateTime.php
index 44c5a5b0f8..25df1c9928 100644
--- a/src/Faker/Provider/DateTime.php
+++ b/src/Faker/Provider/DateTime.php
@@ -330,7 +330,6 @@ public static function century()
     }
 
     /**
-     * @param string|null $countryCode
      * @return string
      *
      * @example 'Europe/Paris'