As it is necessary to have time zones mentioned in your events, you can display the time zone next to the events, so that visitors can easily determine the local time of the events.
For that:
Open the Settings of the app.
Localize.
Turn on the toggle button of Show time zone.
Choose the time zone you prefer from the dropdown menu.
If you want your users to see the event time converted according to their timezone, you can enable Auto-convert Date & Time.