Time zone settings are one of the most critical basic system configurations. If the time zone is set incorrectly, online services or applications may fail to function properly or even deny service. If the host time zone is maliciously modified, it can affect normal system operation.
If the host time zone has been illegally modified, use timedatectl set-timezone to restore the host time zone. Carefully inspect the host environment for potential intrusion and change the host user password.