dur

Baseline Widely available

This feature is well established and works across many devices and browser versions. It’s been available across browsers since ⁨January 2020⁩.

The dur attribute indicates the simple duration of an animation.

You can use this attribute with the following SVG elements:

Example

html,
body,
svg {
  height: 100%;
}

html

<svg viewBox="0 0 220 150" xmlns="http://www.w3.org/2000/svg">
  <rect x="0" y="0" width="100" height="100">
    <animate
      attributeType="XML"
      attributeName="y"
      from="0"
      to="50"
      dur="1s"
      repeatCount="indefinite" />
  </rect>
  <rect x="120" y="0" width="100" height="100">
    <animate
      attributeType="XML"
      attributeName="y"
      from="0"
      to="50"
      dur="3s"
      repeatCount="indefinite" />
  </rect>
</svg>

Usage notes

Value	`<clock-value>` \| `media` \| `indefinite`
Default value	`indefinite`
Animatable	No

<clock-value>: This value specifies the length of the simple duration. The value must be greater than 0 and can be expressed with hours (h), minutes (m), seconds (s) or milliseconds (ms). It's possible to combine those time representations to create some complex durations like hh:mm:ss.iii or mm:ss.iii.
media: This value specifies the simple duration as the intrinsic media duration. This is only valid for elements that define media. (For animation elements the attribute will be ignored if media is specified.)
indefinite: This value specifies the simple duration as indefinite.

Note: The interpolation will not work if the simple duration is indefinite (although this may still be useful for <set> elements).

Specifications

Specification
SVG Animations Level 2 # DurAttribute

Browser compatibility

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This page was last modified on ⁨Mar 18, 2025⁩ by MDN contributors.

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