How to change Time Zone

The time of all your events changes automatically while you are traveling to another country with a different time zone. You can disable the feature to control it manually. To do that:

1. Launch the Calendars app.
2. Go to Settings.
3. Select Time Zone.
4. Change Local Time Zone to the time zone of the region you are in.

If the time zone still changes, go to iOS Settings > tap Calendar > Time Zone Override > disable Time Zone Override toggle.