---
title: "updateTimeZone(_:completionHandler:)"
framework: homekit
role: symbol
role_heading: Instance Method
path: "homekit/hmtimertrigger/updatetimezone(_:completionhandler:)"
---

# updateTimeZone(_:completionHandler:)

Updates the trigger’s time zone.

## Declaration

```swift
func updateTimeZone(_ timeZone: TimeZone?, completionHandler completion: @escaping @Sendable ((any Error)?) -> Void)
```

```swift
func updateTimeZone(_ timeZone: TimeZone?) async throws
```

## Parameters

- `timeZone`: The new time zone; may be nil.
- `completion`: The block executed after the request is processed.

## Discussion

Discussion See timeZone for a description of how the time zone is interpreted.

## See Also

### Deprecated symbols

- [init(name:fireDate:timeZone:recurrence:recurrenceCalendar:)](homekit/hmtimertrigger/init(name:firedate:timezone:recurrence:recurrencecalendar:).md)
- [timeZone](homekit/hmtimertrigger/timezone.md)
- [recurrenceCalendar](homekit/hmtimertrigger/recurrencecalendar.md)