<!--
{
  "availability" : [
    "iOS: 15.0.0 -",
    "iPadOS: 15.0.0 -",
    "macCatalyst: 15.0.0 -",
    "macOS: 12.0.0 -",
    "tvOS: 15.0.0 -",
    "visionOS: 1.0.0 -",
    "watchOS: 8.0.0 -"
  ],
  "documentType" : "symbol",
  "framework" : "SwiftUI",
  "identifier" : "/documentation/SwiftUI/PeriodicTimelineSchedule/init(from:by:)",
  "metadataVersion" : "0.1.0",
  "role" : "Initializer",
  "symbol" : {
    "kind" : "Initializer",
    "modules" : [
      "SwiftUI"
    ],
    "preciseIdentifier" : "s:7SwiftUI24PeriodicTimelineScheduleV4from2byAC10Foundation4DateV_Sdtcfc"
  },
  "title" : "init(from:by:)"
}
-->

# init(from:by:)

Creates a periodic update schedule.

```
init(from startDate: Date, by interval: TimeInterval)
```

## Parameters

`startDate`

The date on which to start the sequence.

`interval`

The time interval between successive sequence entries.

## Discussion

Use the [`entries(from:mode:)`](/documentation/SwiftUI/PeriodicTimelineSchedule/entries(from:mode:)) method
to get the sequence of dates.

---

Copyright &copy; 2026 Apple Inc. All rights reserved. | [Terms of Use](https://www.apple.com/legal/internet-services/terms/site.html) | [Privacy Policy](https://www.apple.com/privacy/privacy-policy)