Yii2 CSRF令牌时间段增加

Currently I am working on Yii2 and when I go to form submit after some time then Yii2 redirect to bad request, I think there is CSRF token expire so my question is, how increase CSRF token life in Yii2?

How can we do with form submit with long time and CSRF token also validate?

CSRF token validation disable is working fine in my code but I didn't want to disable it.

No need to code show here, I think.

You can use frontend and backend as different cookie and session

Cookie Backend

'identityCookie' => [
                'name' => '_backendIdentity',
                'path'=>'/admin',
                'httpOnly' => true,
            ],

Cookie Frontend

'identityCookie' => [
                    'name' => '_frontendIdentity',
                    'path'=>'/', 
                    'httpOnly' => true,
                ],

Session Backend

'session' => [
            'name' => 'session_backend'
        ],

Session Frontend

'session' => [
            'name' => 'session_frontend'
        ],