HTML datetime Attribute

Example

<p>This text has been <del datetime="2020-01-01T01:01:01Z">deleted</del>.</p>

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Meaning

The date and time the deletion, insertion or enclosed content was made.

Valid datetime Values:

Possible	Values
a valid year string	2011
a valid month string	2011-11
a valid date string	2011-11-18
a valid yearless date string	11-18
a valid week string	2011-W47
a valid time string	14:54 14:54:39 14:54:39.929
a valid local date and time string	2011-11-18T14:54:39.929 2011-11-18 14:54:39.929
a valid global date and time string	2011-11-18T14:54:39.929Z 2011-11-18T14:54:39.929-0400 2011-11-18T14:54:39.929-04:00 2011-11-18 14:54:39.929Z 2011-11-18 14:54:39.929-0400 2011-11-18 14:54:39.929-04:00
a valid duration string	PT4H18M3S

Standard Syntax

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

Applies to:

The datetime attribute can be used on the following element:

Element	Attribute
<del>	datetime
<ins>	datetime
<time>	datetime

Attribute Values

Value	Description
YYYY-MM-DDThh:mm:ssTZD	Date and time of when the text was deleted. Components: YYYY: four-digit year such as 1997 MM: two-digit month (01=January, 02=February, and so on.) DD: two-digit day of the month (01,02, and so on.) hh: two-digit hour (00 to 23) (24-hour clock, not AM or PM) mm: two-digit minute (00 to 59) ss: two-digit second (00 to 59) TZD: time zone designator (Z denotes Zulu)

Value

Description

YYYY-MM-DDThh:mm:ssTZD

Date and time of when the text was deleted.

Components:

YYYY: four-digit year such as 1997
MM: two-digit month (01=January, 02=February, and so on.)
DD: two-digit day of the month (01,02, and so on.)
hh: two-digit hour (00 to 23) (24-hour clock, not AM or PM)
mm: two-digit minute (00 to 59)
ss: two-digit second (00 to 59)
TZD: time zone designator (Z denotes Zulu)

More Examples

Example

<p>Cost of the product has been increased <ins cite="http://www.example.com/index.html" date="2021-01-01T00:00:00-00:00">New rates will be effected January 2021 onwards.</ins></p>

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Example

<p>The program starts at <time datetime="2021-01-01T01:00:00">01:00</time>.</p>

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