Google Calendar: How to change time zones on google calendar

The video tutorial explains how to add a secondary time zone to Google Calendar. It guides users through navigating the settings to display a secondary time zone and demonstrates how to create events with different time zones. The tutorial also covers labeling and saving these settings, as well as specifying start and end time zones for events.

Explain how to toggle between time zones when creating an event.

What is the significance of specifying separate start or end time zones?