HTML and CSS Reference
In-Depth Information
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
The time zone designator is either
Z
, which indicates Universal Time Coordinate or
coordinated universal time format (UTC), or
+
hh
:
mm
, which indicates that the time is a local
time that is
hh
hours and
mm
minutes ahead of UTC. Alternatively, the format for the time
zone designator could be
-
hh
:
mm
, which indicates that the local time is behind UTC. Note
that the letter
T
actually appears in the string, all digits must be used, and
00
values for
minutes and seconds might be required. An example value for the
datetime
attribute
might be
2009-10-6T09:15:00-05:00
, which corresponds to October 6, 2010, 9:15
A
.
M
.,
U.S. Eastern Standard Time.
Example
<p>
We have the lowest prices in the galaxy!
<ins cite="http://www
.democompany.com/changes/jan10.html"
date="2010-05-01T09:15:00-05:00">
New rates are effective in 2010.
</ins></p>
Compatibility
HTML 4, 4.01, 5
XHTML 1.0, 1.1
Firefox 1+, Internet Explorer 4+,
Netscape 6+, Opera 4+, Safari 1+
Note
• Browsers can render inserted (
<ins>
) or deleted (
<del>
) text in a different style to
show the changes that have been made to the document. Typically, newly inserted
entries are underlined and deletions appear with strikethrough. In theory, a browser
could have a way to show a revision history on a document, but generally this is left
up to scripting or the environment the page is built in.
<isindex> (Index Prompt)
This element indicates that a document has an associated searchable keyword index. When
a browser encounters this element, it inserts a query entry field at that point in the
document. The viewer can enter query terms to perform a search. This element is
deprecated under the strict HTML and XHTML specifications and should not be used.
Standard Syntax (Transitional Only)
<isindex
class="class name(s)"
dir="ltr | rtl"
href="URL" (nonstandard but common)
id="unique alphanumeric identifier"
lang="language code"
prompt="string"
style="style information"
title="advisory text" />
