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HTML <time> datetime Attribute

HTML time Tag Reference HTML <time> tag

Example

A time element with a machine-readable datetime attribute:

<p>I have a date on <time datetime="2008-02-14">Valentines day</time>.</p>

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Browser Support

Internet Explorer Firefox Opera Google Chrome Safari

The datetime attribute does not render as anything special in any of the major browsers.


Definition and Usage

The datetime attribute represent the machine-readable date/time of the <time> element.

Examples of legal dates and times:

Dates:
<time datetime="1914">  <!-- means the year 1914 -->
<time datetime="1914-12">  <!-- means December 1914 -->
<time datetime="1914-12-20">  <!-- means 20 December 1914 -->
<time datetime="12-20">  <!-- means 20 December any year -->
<time datetime="1914-W15">  <!-- means week 15 of year 1914 -->

Date and Times:
<time datetime="1914-12-20T08:00">  <!-- means 20 December 1914 at 8am -->
<time datetime="1914-12-20 08:00">  <!-- also means 20 December 1914 at 8am -->
<time datetime="1914-12-20 08:30:45">  <!-- with minutes and seconds -->
<time datetime="1914-12-20 08:30:45.687">  <!-- with minutes, seconds, and milliseconds -->

Times:
<time datetime="08:00">  <!-- means 8am -->
<time datetime="08:00-03:00">  <!-- means 8am in Rio de Janeiro (UTC-3 hours)  -->
<time datetime="08:00+03:00">  <!-- means 8am in Madagascar (UTC+3 hours)  -->

Durations:
<time datetime="P2D">  <!-- means a duration of 2 days -->
<time datetime="PT15H10M">  <!-- means a duration of 15 hours and 10 minutes -->

Differences Between HTML 4.01 and HTML5

The <time> tag is new in HTML5.


Syntax

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

Attribute Values

Value Description
YYYY-MM-DDThh:mm:ssTZD

or

PTDHMS
The date or time being specified. Explanation of components:
  • YYYY - year (e.g. 2011)
  • MM - month (e.g. 01 for January)
  • DD - day of the month (e.g. 08)
  • T or a space - a separator (required if time is also specified)
  • hh - hour (e.g. 22 for 10.00pm)
  • mm - minutes (e.g. 55)
  • ss - seconds (e.g. 03)
  • TZD - Time Zone Designator (Z denotes Zulu, also known as Greenwich Mean Time)
  • P - a prefix for "Period"
  • D - a prefix for "Days"
  • H - a prefix for "Hours"
  • M - a prefix for "Minutes"
  • S - a prefix for "Seconds"


HTML time Tag Reference HTML <time> tag

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