---
url: /dash-core-components/interval
name: Interval
description:
    "dcc.Interval is a component that triggers a callback periodically, useful for updating data or refreshing components at set intervals."
languages:
    - python
    - julia
    - fsharp
    - matlab
---

# ![](/assets/images/language_icons/julia_50px.svg) dcc.Interval


`dcc.Interval` is a component that will fire a callback periodically.
Use `dcc.Interval` to update your app in realtime without needing to
refresh the page or click on any buttons.

See also the <dccLink href="/live-updates" children="live updates"/> chapter for other examples and strategies.



***

{{reference dcc.Interval}}