Se indica si el token esta expirado

app/Http/Middleware/JwtMiddleware.php

@@ -26,9 +26,17 @@ class JwtMiddleware
 
         try {
 
-            JWT::decode($token, new Key(config('app.jwt_secret'), 'HS256'));
+            $decodedToken = JWT::decode($token, new Key(config('app.jwt_secret'), 'HS256'));
+
+            if (isset($decodedToken->exp) && $decodedToken->exp < time()) {
+                return response()->json(['message' => 'Token ha expirado'], 401);
+            }
+            
             return $next($request);
 
+        } catch (\Firebase\JWT\ExpiredException $e) {
+            return response()->json(['message' => 'Token ha expirado'], 401);
+
         } catch (\Exception $e) {
             return response()->json(['message' => 'Token inválido'], 401);
         }