---
title: AlarmPresentationState.Mode.Countdown
framework: alarmkit
role: symbol
role_heading: Structure
path: alarmkit/alarmpresentationstate/mode-swift.enum/countdown
---

# AlarmPresentationState.Mode.Countdown

An object that specifies a countdown is in progress.

## Declaration

```swift
struct Countdown
```

## Topics

### Creating a countdown

- [init(totalCountdownDuration:previouslyElapsedDuration:startDate:fireDate:)](alarmkit/alarmpresentationstate/mode-swift.enum/countdown/init(totalcountdownduration:previouslyelapsedduration:startdate:firedate:).md)
- [fireDate](alarmkit/alarmpresentationstate/mode-swift.enum/countdown/firedate.md)
- [previouslyElapsedDuration](alarmkit/alarmpresentationstate/mode-swift.enum/countdown/previouslyelapsedduration.md)
- [startDate](alarmkit/alarmpresentationstate/mode-swift.enum/countdown/startdate.md)
- [totalCountdownDuration](alarmkit/alarmpresentationstate/mode-swift.enum/countdown/totalcountdownduration.md)

## Relationships

### Conforms To

- [Decodable](swift/decodable.md)
- [Encodable](swift/encodable.md)
- [Equatable](swift/equatable.md)
- [Hashable](swift/hashable.md)
- [Sendable](swift/sendable.md)
- [SendableMetatype](swift/sendablemetatype.md)

## See Also

### Creating a countdown

- [AlarmPresentationState.Mode.countdown(_:)](alarmkit/alarmpresentationstate/mode-swift.enum/countdown(_:).md)