diff --git a/src/Models/StoredWorkflow.php b/src/Models/StoredWorkflow.php
index fcd1994..26484f6 100644
--- a/src/Models/StoredWorkflow.php
+++ b/src/Models/StoredWorkflow.php
@@ -24,6 +24,8 @@ final class StoredWorkflow extends Model
      */
     protected $guarded = [];
 
+    protected $dateFormat = 'Y-m-d H:i:s.u';
+
     /**
      * @var array<string, class-string<\Workflow\States\WorkflowStatus>>
      */
@@ -31,26 +33,6 @@ final class StoredWorkflow extends Model
         'status' => WorkflowStatus::class,
     ];
 
-    public function getCreatedAtAttribute(string $value): Carbon
-    {
-        return Carbon::createFromFormat('Y-m-d H:i:s.u', $value);
-    }
-
-    public function setCreatedAtAttribute(Carbon $value): void
-    {
-        $this->attributes['created_at'] = $value->format('Y-m-d H:i:s.u');
-    }
-
-    public function getUpdatedAtAttribute(string $value): Carbon
-    {
-        return Carbon::createFromFormat('Y-m-d H:i:s.u', $value);
-    }
-
-    public function setUpdatedAtAttribute(Carbon $value): void
-    {
-        $this->attributes['updated_at'] = now()->format('Y-m-d H:i:s.u');
-    }
-
     public function toWorkflow()
     {
         return WorkflowStub::fromStoredWorkflow($this);
diff --git a/src/Models/StoredWorkflowException.php b/src/Models/StoredWorkflowException.php
index b6ba67f..73a66d8 100644
--- a/src/Models/StoredWorkflowException.php
+++ b/src/Models/StoredWorkflowException.php
@@ -21,15 +21,7 @@ final class StoredWorkflowException extends Model
      */
     protected $guarded = [];
 
-    public function getCreatedAtAttribute(string $value): Carbon
-    {
-        return Carbon::createFromFormat('Y-m-d H:i:s.u', $value);
-    }
-
-    public function setCreatedAtAttribute(Carbon $value): void
-    {
-        $this->attributes['created_at'] = $value->format('Y-m-d H:i:s.u');
-    }
+    protected $dateFormat = 'Y-m-d H:i:s.u';
 
     public function workflow(): \Illuminate\Database\Eloquent\Relations\BelongsTo
     {
diff --git a/src/Models/StoredWorkflowLog.php b/src/Models/StoredWorkflowLog.php
index b92eb38..ad2eaee 100644
--- a/src/Models/StoredWorkflowLog.php
+++ b/src/Models/StoredWorkflowLog.php
@@ -21,15 +21,7 @@ final class StoredWorkflowLog extends Model
      */
     protected $guarded = [];
 
-    public function getCreatedAtAttribute(string $value): Carbon
-    {
-        return Carbon::createFromFormat('Y-m-d H:i:s.u', $value);
-    }
-
-    public function setCreatedAtAttribute(Carbon $value): void
-    {
-        $this->attributes['created_at'] = $value->format('Y-m-d H:i:s.u');
-    }
+    protected $dateFormat = 'Y-m-d H:i:s.u';
 
     public function workflow(): \Illuminate\Database\Eloquent\Relations\BelongsTo
     {
diff --git a/src/Models/StoredWorkflowSignal.php b/src/Models/StoredWorkflowSignal.php
index de415b2..66629ff 100644
--- a/src/Models/StoredWorkflowSignal.php
+++ b/src/Models/StoredWorkflowSignal.php
@@ -21,15 +21,7 @@ final class StoredWorkflowSignal extends Model
      */
     protected $guarded = [];
 
-    public function getCreatedAtAttribute(string $value): Carbon
-    {
-        return Carbon::createFromFormat('Y-m-d H:i:s.u', $value);
-    }
-
-    public function setCreatedAtAttribute(Carbon $value): void
-    {
-        $this->attributes['created_at'] = $value->format('Y-m-d H:i:s.u');
-    }
+    protected $dateFormat = 'Y-m-d H:i:s.u';
 
     public function workflow(): \Illuminate\Database\Eloquent\Relations\BelongsTo
     {
diff --git a/src/Models/StoredWorkflowTimer.php b/src/Models/StoredWorkflowTimer.php
index 8eef425..100e63a 100644
--- a/src/Models/StoredWorkflowTimer.php
+++ b/src/Models/StoredWorkflowTimer.php
@@ -21,33 +21,15 @@ final class StoredWorkflowTimer extends Model
      */
     protected $guarded = [];
 
+    protected $dateFormat = 'Y-m-d H:i:s.u';
+
     /**
      * @var array<string, class-string<\datetime>>
      */
     protected $casts = [
-        'stop_at' => 'datetime',
+        'stop_at' => 'datetime:Y-m-d H:i:s.u',
     ];
 
-    public function getCreatedAtAttribute(string $value): Carbon
-    {
-        return Carbon::createFromFormat('Y-m-d H:i:s.u', $value);
-    }
-
-    public function setCreatedAtAttribute(Carbon $value): void
-    {
-        $this->attributes['created_at'] = $value->format('Y-m-d H:i:s.u');
-    }
-
-    public function getStopAtAttribute(string $value): Carbon
-    {
-        return Carbon::createFromFormat('Y-m-d H:i:s.u', $value);
-    }
-
-    public function setStopAtAttribute(Carbon $value): void
-    {
-        $this->attributes['stop_at'] = $value->format('Y-m-d H:i:s.u');
-    }
-
     public function workflow(): \Illuminate\Database\Eloquent\Relations\BelongsTo
     {
         return $this->belongsTo(StoredWorkflow::class);

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