diff --git a/src/ZonedDateTime.php b/src/ZonedDateTime.php
index 92eebb10..28f2a822 100644
--- a/src/ZonedDateTime.php
+++ b/src/ZonedDateTime.php
@@ -19,6 +19,7 @@
 use function assert;
 use function intdiv;
 use function rtrim;
+use function sprintf;
 use function str_pad;
 
 use const STR_PAD_LEFT;
@@ -166,14 +167,34 @@ public static function from(DateTimeParseResult $result): ZonedDateTime
 
         if ($result->hasField(Field\TimeZoneRegion::NAME)) {
             $timeZone = TimeZoneRegion::from($result);
-        } else {
-            $timeZone = $timeZoneOffset;
+
+            $zonedDateTime = ZonedDateTime::ofInstant(
+                ZonedDateTime::of($localDateTime, $timeZoneOffset)->getInstant(),
+                $timeZone,
+            );
+
+            if (! $zonedDateTime->getTimeZoneOffset()->isEqualTo($timeZoneOffset)) {
+                // In a gap, of() shifts the local date-time forward.
+                if (! ZonedDateTime::of($localDateTime, $timeZone)->getDateTime()->isEqualTo($localDateTime)) {
+                    throw new DateTimeException(sprintf(
+                        'The local date-time %s does not exist in %s.',
+                        $localDateTime,
+                        $timeZone,
+                    ));
+                }
+
+                throw new DateTimeException(sprintf(
+                    'The offset %s is not valid for %s in %s.',
+                    $timeZoneOffset,
+                    $localDateTime,
+                    $timeZone,
+                ));
+            }
+
+            return $zonedDateTime;
         }
 
-        return ZonedDateTime::of(
-            $localDateTime,
-            $timeZone,
-        );
+        return ZonedDateTime::of($localDateTime, $timeZoneOffset);
     }
 
     /**
diff --git a/tests/ZonedDateTimeTest.php b/tests/ZonedDateTimeTest.php
index e88b7cb0..2090a222 100644
--- a/tests/ZonedDateTimeTest.php
+++ b/tests/ZonedDateTimeTest.php
@@ -482,6 +482,9 @@ public static function providerParse(): iterable
             ['2001-02-03T01:02+00:00[Europe/London]', '2001-02-03', '01:02', 'Z', 'Europe/London'],
             ['2001-02-03T01:02:03-00:00[Europe/London]', '2001-02-03', '01:02:03', 'Z', 'Europe/London'],
             ['2001-02-03T01:02:03.456+00:00[Europe/London]', '2001-02-03', '01:02:03.456', 'Z', 'Europe/London'],
+            ['2001-07-03T01:02+01:00[Europe/London]', '2001-07-03', '01:02', '+01:00', 'Europe/London'],
+            ['2024-10-27T02:30+02:00[Europe/Zurich]', '2024-10-27', '02:30', '+02:00', 'Europe/Zurich'],
+            ['2024-10-27T02:30+01:00[Europe/Zurich]', '2024-10-27', '02:30', '+01:00', 'Europe/Zurich'],
         ];
 
         if (PHP_VERSION_ID >= 80107) {
@@ -489,6 +492,26 @@ public static function providerParse(): iterable
         }
     }
 
+    #[DataProvider('providerParseWithOffsetNotValidForRegionThrowsException')]
+    public function testParseWithOffsetNotValidForRegionThrowsException(string $text, string $expectedMessage): void
+    {
+        $this->expectException(DateTimeException::class);
+        $this->expectExceptionMessage($expectedMessage);
+
+        ZonedDateTime::parse($text);
+    }
+
+    public static function providerParseWithOffsetNotValidForRegionThrowsException(): array
+    {
+        return [
+            ['2001-02-03T01:02+01:00[Europe/London]', 'The offset +01:00 is not valid for 2001-02-03T01:02 in Europe/London.'],
+            ['2024-06-01T12:00Z[Europe/Zurich]', 'The offset Z is not valid for 2024-06-01T12:00 in Europe/Zurich.'],
+            ['2024-06-01T12:00+05:00[Europe/Zurich]', 'The offset +05:00 is not valid for 2024-06-01T12:00 in Europe/Zurich.'],
+            ['2024-03-31T02:30+01:00[Europe/Zurich]', 'The local date-time 2024-03-31T02:30 does not exist in Europe/Zurich.'],
+            ['2024-03-31T02:30+02:00[Europe/Zurich]', 'The local date-time 2024-03-31T02:30 does not exist in Europe/Zurich.'],
+        ];
+    }
+
     #[DataProvider('providerParseInvalidStringThrowsException')]
     public function testParseInvalidStringThrowsException(string $text): void
     {
@@ -758,7 +781,7 @@ public static function providerPlusPeriod(): Generator
             ['2000-02-16T12:34:56.123456789-08:00[America/Los_Angeles]', Period::ofMonths(2), '2000-04-16T12:34:56.123456789-07:00[America/Los_Angeles]'],
             ['2000-05-16T12:34:56.123456789-07:00[America/Los_Angeles]', Period::ofMonths(-1), '2000-04-16T12:34:56.123456789-07:00[America/Los_Angeles]'],
             ['2000-05-16T12:34:56.123456789-07:00[America/Los_Angeles]', Period::ofMonths(-2), '2000-03-16T12:34:56.123456789-08:00[America/Los_Angeles]'],
-            ['2000-02-16T12:34:56.123456789-07:00[America/Los_Angeles]', Period::of(1, -2, 3), '2000-12-19T12:34:56.123456789-08:00[America/Los_Angeles]'],
+            ['2000-02-16T12:34:56.123456789-08:00[America/Los_Angeles]', Period::of(1, -2, 3), '2000-12-19T12:34:56.123456789-08:00[America/Los_Angeles]'],
         ];
 
         foreach (self::providerPlusDays() as [$zonedDateTime, $plusDays, $expected]) {