Time zone plays an important role in displaying the availability of the tickets and also the Start and End time of the event. This is the first setting to be updated before events or tickets are created.
To change the time zone, please login to your account. On the top right corner, click the profile icon and select Profiles & Setting. Select Organisation setting from the left side menu and select the Basic Information submenu. You will see an option to change the time zone. Just type your time zone and it will show up your location, select and save it.