problem with wp-cron.php on wordpress

Hi,
i've find out today that scheduled posts in my wordpress site hosted in my plesk server, doesn't work as expected.
so i've investigated and check on my plesk configuration why it doesn't works.

First of all i've check date on my linux machine and it's correct.
After that i've check date.timezone on php.ini of domain and it's correct, so i've found a workaround using "scheduled tasks" on domain.
I've scheduled every minutes the execution of wp-cron.php and with this workaround, it works....

problem with wp-cron.php on wordpress