diff --git a/src/Doctrine/TimeType.php b/src/Doctrine/TimeType.php
index 97e1531..24b45c8 100644
--- a/src/Doctrine/TimeType.php
+++ b/src/Doctrine/TimeType.php
@@ -5,44 +5,26 @@
 namespace DigitalCraftsman\DateTimePrecision\Doctrine;
 
 use DigitalCraftsman\DateTimePrecision\Time;
+use DigitalCraftsman\SelfAwareNormalizers\Doctrine\StringNormalizableType;
 use Doctrine\DBAL\Platforms\AbstractPlatform;
-use Doctrine\DBAL\Types\Type;
 
-final class TimeType extends Type
+/**
+ * @codeCoverageIgnore
+ */
+final class TimeType extends StringNormalizableType
 {
-    /** @codeCoverageIgnore */
-    public function getName(): string
+    public static function getTypeName(): string
     {
         return 'dtp_time';
     }
 
-    /** @codeCoverageIgnore */
-    public function getSQLDeclaration(array $column, AbstractPlatform $platform): string
-    {
-        return $platform->getTimeTypeDeclarationSQL($column);
-    }
-
-    /** @param Time|null $value */
-    public function convertToDatabaseValue($value, AbstractPlatform $platform): ?string
+    public static function getClass(): string
     {
-        if ($value === null) {
-            return null;
-        }
-
-        return $value->format($platform->getTimeFormatString());
+        return Time::class;
     }
 
-    /** @param string|null $value */
-    public function convertToPHPValue($value, AbstractPlatform $platform): ?Time
-    {
-        return $value === null
-            ? null
-            : Time::fromString($value);
-    }
-
-    /** @codeCoverageIgnore */
-    public function requiresSQLCommentHint(AbstractPlatform $platform): bool
+    public function getSQLDeclaration(array $column, AbstractPlatform $platform): string
     {
-        return true;
+        return $platform->getTimeTypeDeclarationSQL($column);
     }
 }
diff --git a/src/Serializer/TimeNormalizer.php b/src/Serializer/TimeNormalizer.php
deleted file mode 100644
index a3ba4f6..0000000
--- a/src/Serializer/TimeNormalizer.php
+++ /dev/null
@@ -1,51 +0,0 @@
-<?php
-
-declare(strict_types=1);
-
-namespace DigitalCraftsman\DateTimePrecision\Serializer;
-
-use DigitalCraftsman\DateTimePrecision\Time;
-use Symfony\Component\Serializer\Normalizer\DenormalizerInterface;
-use Symfony\Component\Serializer\Normalizer\NormalizerInterface;
-
-final class TimeNormalizer implements NormalizerInterface, DenormalizerInterface
-{
-    public function supportsNormalization($data, $format = null, array $context = []): bool
-    {
-        return $data instanceof Time;
-    }
-
-    /** @param class-string $type */
-    public function supportsDenormalization($data, $type, $format = null, array $context = []): bool
-    {
-        return $type === Time::class;
-    }
-
-    /** @param Time|null $object */
-    public function normalize($object, $format = null, array $context = []): ?string
-    {
-        return $object === null
-            ? null
-            : (string) $object;
-    }
-
-    /** @param ?string $data */
-    public function denormalize($data, $type, $format = null, array $context = []): ?Time
-    {
-        return $data === null
-            ? null
-            : Time::fromString($data);
-    }
-
-    /**
-     * @return array<class-string, bool>
-     *
-     * @codeCoverageIgnore
-     */
-    public function getSupportedTypes(?string $format): array
-    {
-        return [
-            Time::class => true,
-        ];
-    }
-}
diff --git a/src/Serializer/YearNormalizer.php b/src/Serializer/YearNormalizer.php
deleted file mode 100644
index 1ee922b..0000000
--- a/src/Serializer/YearNormalizer.php
+++ /dev/null
@@ -1,51 +0,0 @@
-<?php
-
-declare(strict_types=1);
-
-namespace DigitalCraftsman\DateTimePrecision\Serializer;
-
-use DigitalCraftsman\DateTimePrecision\Year;
-use Symfony\Component\Serializer\Normalizer\DenormalizerInterface;
-use Symfony\Component\Serializer\Normalizer\NormalizerInterface;
-
-final class YearNormalizer implements NormalizerInterface, DenormalizerInterface
-{
-    public function supportsNormalization($data, $format = null, array $context = []): bool
-    {
-        return $data instanceof Year;
-    }
-
-    /** @param class-string $type */
-    public function supportsDenormalization($data, $type, $format = null, array $context = []): bool
-    {
-        return $type === Year::class;
-    }
-
-    /** @param Year|null $object */
-    public function normalize($object, $format = null, array $context = []): ?int
-    {
-        return $object === null
-            ? null
-            : $object->year;
-    }
-
-    /** @param int|null $data */
-    public function denormalize($data, $type, $format = null, array $context = []): ?Year
-    {
-        return $data === null
-            ? null
-            : new Year($data);
-    }
-
-    /**
-     * @return array<class-string, bool>
-     *
-     * @codeCoverageIgnore
-     */
-    public function getSupportedTypes(?string $format): array
-    {
-        return [
-            Year::class => true,
-        ];
-    }
-}
diff --git a/src/Time.php b/src/Time.php
index 2186d9c..79ba359 100644
--- a/src/Time.php
+++ b/src/Time.php
@@ -4,10 +4,12 @@
 
 namespace DigitalCraftsman\DateTimePrecision;
 
-final readonly class Time implements \Stringable
+use DigitalCraftsman\SelfAwareNormalizers\Serializer\StringNormalizable;
+
+final readonly class Time implements \Stringable, StringNormalizable
 {
-    private const TIME_FORMAT = 'H:i:s.u';
-    private const MINUTES_IN_AN_HOUR = 60;
+    private const string TIME_FORMAT = 'H:i:s.u';
+    private const int MINUTES_IN_AN_HOUR = 60;
 
     // -- Construction
 
@@ -74,13 +76,25 @@ public static function fromString(string $time): self
         }
     }
 
-    // Stringable
+    // -- Stringable
 
     public function __toString(): string
     {
         return $this->format(self::TIME_FORMAT);
     }
 
+    // -- String normalizable
+
+    public static function denormalize(string $data): self
+    {
+        return self::fromString($data);
+    }
+
+    public function normalize(): string
+    {
+        return $this->format(self::TIME_FORMAT);
+    }
+
     // -- Accessors
 
     public function isAfter(self $time): bool