Please refer to the below steps to change the date and time zone setting in WordPress.

1. Login to your WordPress admin account.
   
   
2. At WordPress admin dashboard, click on Settings >> General.
   
   
3. Scroll down and under the time zone setting and select the time zone you want to set.
   
   
4. Under the Date format select the pre-defined date format which you want to use for your WordPress site.
   
   
5. Under the Time Format select the pre-defined time formate which you want to set for your WordPress site.
   
   
   
   
6. Click save changes button, and the new date and time setting will take effect.