title: WordPress (PHP) Posting Timezone Issue
body: <p>Version: PHP 7.3.1</p>
  
  <p>When scheduling a post, there is a 9 hour delay. When commenting or posting, the timestamp immediately shows "9 hours ago."</p>
  
  <p>I want to set 'Asia/Seoul' as the time. I checked the server using phpinfo(), and the server time is correct.
  <a href="https://i.stack.imgur.com/c4NtS.png" rel="nofollow noreferrer"><img src="https://i.stack.imgur.com/c4NtS.png" alt="phpinfo() server time"></a></p>
  
  <p>I also set 'Seoul' for the timezone in the settings.</p>
  
  <p>I used hardcode "date_default_timezone_set('Asia/Seoul')" temporarily, but it is difficult to apply it to every single function. I need a foundational solution for this issue.</p>
  
  <p>I would appreciate if anyone could help me solve this issue.</p>
  
  <p>Thank you.</p>