recently i need to configure firewall policy for my IPS with finite period time but I notice that it not working. and i notice that from 'show" output, the time zone for my sensor is UTC which is 8 hour early than my NSM server time. is that a way to sync it back?
Is the time zone set for the sensor under Devices -> Sensor -> Setup -> Time Zone? And is NTP configured there or under the global Devices settings?
The time shown on the sensor CLI will always be GMT, and shouldn't affect anything with the sensor firewall for policies based on time periods. You'll want to verify that the time zone is set correctly on the manager side. Have you opened a case with the support team to investigate?