---
title: HMSignificantTimeEvent
framework: homekit
role: symbol
role_heading: Class
path: homekit/hmsignificanttimeevent
---

# HMSignificantTimeEvent

An event that fires at a time offset from a significant time-based event.

## Declaration

```swift
class HMSignificantTimeEvent
```

## Overview

Overview Use this class to represent an event that fires at a time relative to a significant event, for example “30 minutes before sunset”.

## Topics

### Creating a significant time event

- [init(significantEvent:offset:)](homekit/hmsignificanttimeevent/init(significantevent:offset:).md)

### Inspecting a significant time event

- [significantEvent](homekit/hmsignificanttimeevent/significantevent.md)
- [offset](homekit/hmsignificanttimeevent/offset.md)

## Relationships

### Inherits From

- [HMTimeEvent](homekit/hmtimeevent.md)

### Inherited By

- [HMMutableSignificantTimeEvent](homekit/hmmutablesignificanttimeevent.md)

### Conforms To

- [CVarArg](swift/cvararg.md)
- [CustomDebugStringConvertible](swift/customdebugstringconvertible.md)
- [CustomStringConvertible](swift/customstringconvertible.md)
- [Equatable](swift/equatable.md)
- [Hashable](swift/hashable.md)
- [NSCopying](foundation/nscopying.md)
- [NSMutableCopying](foundation/nsmutablecopying.md)
- [NSObjectProtocol](objectivec/nsobjectprotocol.md)
- [Sendable](swift/sendable.md)
- [SendableMetatype](swift/sendablemetatype.md)

## See Also

### Significant events

- [HMSignificantEvent](homekit/hmsignificantevent.md)
- [HMMutableSignificantTimeEvent](homekit/hmmutablesignificanttimeevent.md)