HTMLModElement: dateTime property
Baseline Widely available
This feature is well established and works across many devices and browser versions. It’s been available across browsers since July 2015.
The dateTime
property of the HTMLModElement
interface is a string containing a machine-readable date with an optional time value. It reflects the datetime
HTML attribute of the <del>
and <ins>
elements.
Value
A string. For valid string formats, see the datetime
valid values.
Examples
Given the following HTML:
<p>The paragraph <del datetime="2021-11-01">has been</del> changed</p>
We can get the value of the dateTime
attribute of the <del>
element:
const deletedText = document.querySelector("del");
console.log(deletedText.dateTime); // "2021-11-01"
We can also set the dateTime
property. Here, we create an <ins>
element, then set the dateTime
property of the <ins>
element to the current date in YYYY-MM-DD
format then insert it after the deleted text:
const insertedText = document.createElement("ins");
const now = new Date();
insertedText.dateTime = `${now.getFullYear()}-${now.getMonth() + 1}-${now.getDate()}`;
insertedText.appendChild(document.createTextNode("was"));
deletedText.insertAdjacentElement("afterend", insertedText);
If our script ran on January 9, 2025, our HTML would be as follows:
<p>
The paragraph <del datetime="2021-11-01">has been</del
><ins datetime="2025-1-9">was</ins> changed
</p>
Specifications
Specification |
---|
HTML # dom-mod-datetime |
Browser compatibility
Report problems with this compatibility data on GitHubdesktop | mobile | |||||||||||
---|---|---|---|---|---|---|---|---|---|---|---|---|
dateTime |
Legend
Tip: you can click/tap on a cell for more information.
- Full support
- Full support