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HTML <ins> datetime Attribute

HTML <input>

HTML <kbd>

The datetime attribute on a <ins> tag attaches an insertion datetime.

This value is not visible, but it is machine-readable.

Example

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An <ins> element with a datetime attribute.
The datetime value signifies when the insertion occurred.

HTTP stands for Hypertext ~~Translate~~ Transfer Protocol.

<p>
  HTTP stands for Hypertext 
  <del>Translate</del> 
  <ins datetime="2020-10-02T08:11:08Z">Transfer</ins> 
  Protocol.
</p>

Using datetime

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The datetime attribute attaches a date (required) and time (optional) value to an ins element.

Its value is not visible to the user; it only adds a semantic timestamp to the element.

The datetime values are readable by screen readers, search engines, JavaScript code, and others.

Syntax

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<ins datetime="YYYY-MM-DDThh:mm:ssTZD">

Values

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VALUE:	YYYY-MM-DDThh:mm:ssTZD
DESCRIPTION:	The date and time attached to the element. The format can be broken down as follows: YYYY - year (e.g. 2020) MM - month (e.g. 09 for September) DD - day (e.g. 01 for first day of the month) T or space - a date and time separator, required if date is included hh - hour in 24-hour format (e.g. 23) mm - minutes ss - seconds TZD - Time zone designator where Z refers to Zulu or GMT P - prefix for period (duration) D - prefix for days H - prefix for hours M - prefix for minutes S - prefix for seconds
EXAMPLES:	local time 2021-01-18 11:54:41.809 international time 2021-01-18 18:54:41.809Z duration PD18H23M40

Browser support

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Here is when datetime support started for each browser:

Chrome	1.0	Sep 2008
Firefox	1.0	Sep 2002
IE/Edge	1.0	Aug 1995
Opera	1.0	Jan 2006
Safari	1.0	Jan 2003

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Back to <ins>

Jack Poorte

Last updated on Sep 30, 2023