---
title: "timer(countingUpIn:showsHours:maxFieldCount:maxPrecision:)"
framework: foundation
role: symbol
role_heading: Type Method
path: "foundation/formatstyle/timer(countingupin:showshours:maxfieldcount:maxprecision:)"
---

# timer(countingUpIn:showsHours:maxFieldCount:maxPrecision:)

## Declaration

```swift
static func timer(countingUpIn interval: Range<Date>, showsHours: Bool = true, maxFieldCount: Int = 3, maxPrecision: Duration = .seconds(1)) -> SystemFormatStyle.Timer
```