So, If you exoeriance time and date of incoming/outgoing calls and voicemail is incorrect then there is a small setting that you have to change for fusion pbx to display correct time.
Then navigate to Advanced > Default Settings and select Domains from the dropdown category meny list like below…
and open subcategory time_zone like in the below picture
Select the value that best suits you and click on Save
Once you click save you will be takes to default settings page.
Make sure to clieck on reload to reload the default settings. Thats it, your fusion pbx now will display correct date and time for all your calls and voicemails.