Can you describe a little more? What is the use case and can you include a screenshot showing specifically what you want to change?
As Phil stated, can you provide more detail?
If you are looking to change the timezone/date, please follow this guide on our documentation: https://docs.vmware.com/en/vCloud-Usage-Meter/3.6/com.vmware.vcum.usersguide.doc/GUID-6CD492F0-0FE6-...
You can also configure a NTP server inside of the Usage Meter appliance: Configure an NTP Server in vCloud Usage Meter