HTML and CSS Reference
• hh is the hour in 24-hour format; 00 (midnight) through 23 (11
p.m.). (Add a following colon if you include the minutes.)
• mm are the minutes on the hour; 00 through 59. (Add a following
colon if you include the seconds.)
• ss are the seconds; 00 through 59.
• TZD is the time-zone designator. It can be one of three values:
Z , indicating Greenwich Mean Time, [*] or the hours, minutes, and
seconds before ( - ) or after ( + ) Coordinated Universal Time (UTC),
where time is relative to the time in Greenwich, England.
[*] Greenwich Mean Time is also know as "Zulu," thus the value of "Z."
decodes to February 22, 2007 at 2:26 p.m. Greenwich Mean Time. To
specify Eastern Standard Time, the code for the same time and date is:
Notice that the local time zone may change depending on where the
document gets edited, whereas the universal time will stay the same.
There are several nearly universal attributes for the many HTML and
XHTML tags. These attributes give you a common way to identify ( title )
and label ( id ) a tag's contents for later reference or automated treat-
ment, to change the contents' display characteristics ( class , style ),