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# init(timerInterval:countsDown:)

Creates a progress view for showing continuous progress as time passes.

```
nonisolated init(timerInterval: ClosedRange<Date>, countsDown: Bool = true)
```

## Parameters

`timerInterval`

The date range over which the view progresses.

`countsDown`

If `true` (the default), the view empties as time passes.

## Discussion

Use this initializer to create a view that shows continuous progress
within a date range. The following example initializes a progress view
with a range of `start...end`, where `start` is 30 seconds in the past
and `end` is 90 seconds in the future. As a result, the progress view
begins at 25 percent complete.

```
struct ContentView: View {
    let start = Date().addingTimeInterval(-30)
    let end = Date().addingTimeInterval(90)

    var body: some View {
        ProgressView(timerInterval: start...end
                     countsDown: false)
    }
}
```

![A horizontal bar that represents progress, partially filled in from](images/com.apple.SwiftUI/ProgressView-8-macOS@2x.png)

By default, the progress view empties as time passes from the start of
the date range to the end, but you can use the `countsDown` parameter to
create a progress view that fills as time passes, as the above example
demonstrates.

The progress view provided by this initializer omits a descriptive
label and provides a text label that automatically updates to describe
the current time remaining. To provide custom views for these labels,
use [`init(value:total:label:currentValueLabel:)`](/documentation/SwiftUI/ProgressView/init(value:total:label:currentValueLabel:)) instead.

> Note: Date-relative progress views, such as those created with this
> initializer, don’t support custom styles.

---

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