---
title: "init(interval:tolerance:runLoop:mode:options:)"
framework: foundation
role: symbol
role_heading: Initializer
path: "foundation/timer/timerpublisher/init(interval:tolerance:runloop:mode:options:)"
---

# init(interval:tolerance:runLoop:mode:options:)

Creates a publisher that repeatedly emits the current date on the given interval.

## Declaration

```swift
init(interval: TimeInterval, tolerance: TimeInterval? = nil, runLoop: RunLoop, mode: RunLoop.Mode, options: RunLoop.SchedulerOptions? = nil)
```

## Parameters

- `interval`: The interval on which to publish events.
- `tolerance`: The allowed timing variance when emitting events. Defaults to nil, which allows any variance.
- `runLoop`: The run loop on which the timer runs.
- `mode`: The run loop mode in which to run the timer.
- `options`: Scheduler options passed to the timer. Defaults to nil.