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<HEAD>
<TITLE>datetime.sty v2.56: Formatting Current Date and Time</TITLE>
<META NAME="description" CONTENT="datetime.sty v2.56: Formatting Current Date and Time">
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<P>
<H1 ALIGN="CENTER">datetime.sty v2.56: Formatting Current Date and
Time</H1>
<P ALIGN="CENTER"><STRONG>Nicola L. C. Talbot
<BR>
<BR>
School of Computing Sciences
<BR>
University of East Anglia
<BR>
Norwich. NR4 7TJ.
<BR>
United Kingdom.
<BR> <TT><A NAME="tex2html1"
HREF="http://theoval.cmp.uea.ac.uk/~nlct/">http://theoval.cmp.uea.ac.uk/~nlct/</A></TT></STRONG></P>
<P ALIGN="CENTER"><STRONG>16th November 2009</STRONG></P>
<BR>
<H2><A NAME="SECTION00010000000000000000">
Contents</A>
</H2>
<!--Table of Contents-->
<UL>
<LI><A NAME="tex2html24"
HREF="datetime-manual.html#SECTION00020000000000000000">Introduction</A>
<LI><A NAME="tex2html25"
HREF="datetime-manual.html#SECTION00030000000000000000">Predefined Date Formats</A>
<LI><A NAME="tex2html26"
HREF="datetime-manual.html#SECTION00040000000000000000">Time Commands</A>
<LI><A NAME="tex2html27"
HREF="datetime-manual.html#SECTION00050000000000000000">Formating Dates</A>
<LI><A NAME="tex2html28"
HREF="datetime-manual.html#SECTION00060000000000000000">Defining New Date Formats</A>
<LI><A NAME="tex2html29"
HREF="datetime-manual.html#SECTION00070000000000000000">Saving Dates</A>
<LI><A NAME="tex2html30"
HREF="datetime-manual.html#SECTION00080000000000000000">Predefined Names</A>
<LI><A NAME="tex2html31"
HREF="datetime-manual.html#SECTION00090000000000000000">Package Options</A>
<LI><A NAME="tex2html32"
HREF="datetime-manual.html#SECTION000100000000000000000">Multilingual Support</A>
<LI><A NAME="tex2html33"
HREF="datetime-manual.html#SECTION000110000000000000000">Registers</A>
<LI><A NAME="tex2html34"
HREF="datetime-manual.html#SECTION000120000000000000000">Configuration File</A>
<LI><A NAME="tex2html35"
HREF="datetime-manual.html#SECTION000130000000000000000">LaTeX2HTML styles</A>
<LI><A NAME="tex2html36"
HREF="datetime-manual.html#SECTION000140000000000000000">Troubleshooting</A>
</UL>
<!--End of Table of Contents-->
<H1><A NAME="SECTION00020000000000000000">
Introduction</A>
</H1>
The <TT>datetime</TT> package is a LaTeX2e package that
provides various different formats for <TT>\today</TT>,
and provides commands for displaying the current time.
If you only want the
time commands but not the date changing commands, you can pass
the option <TT>nodate</TT> to the package.
<P>
Since version 2.4, the <TT>datetime</TT> package has been
separated into two packages: <TT>datetime</TT> and
<TT>fmtcount</TT>. When I originally created this package,
I defined the commands, <TT>\ordinal</TT> etc which could be used
in the definition of <TT>\today</TT>. Since then, I have extended
the number of commands available that can be used to display the
value of a LaTeX counter, however it seems more appropriate to
define all these counter-related commands in a separate package.
The <TT>fmtcount</TT> package is now distributed separately
from the <TT>datetime</TT> package, and will also need to
be installed.
<P>
As from version 2.42, the <TT>datetime</TT> package is now
compatible with <TT>babel</TT>, however you must load the
<TT>datetime</TT> package <I>after</I> the <TT>babel</TT> package.
For example:
<PRE>
\usepackage[francais]{babel}
\usepackage{datetime}
</PRE>
<P>
<H1><A NAME="SECTION00030000000000000000">
Predefined Date Formats</A>
</H1>
There are various declarations that change the effect of
<TT>\today</TT>. The change can be localised by placing the
declaration within a group.
<P>
ISO format:
The declaration <code>\yyyymmdddate</code> will redefine
<code>\today</code> to produce
the current date displayed in the form 2000/03/08. (You can
redefine <TT>\dateseparator</TT> to <TT>-</TT> to change to
2000-03-08.)
<P>
<I>Day</I> <I>Month</I> <I>Year</I> formats:
<BR>
The declaration <code>\longdate</code> will redefine
<code>\today</code> to produce the current date displayed in the form
Wednesday 8<SUP>th</SUP> March, 2000
if the package option <TT>dayofweek</TT> is used, or
8<SUP>th</SUP> March, 2000 if the package option
<TT>nodayofweek</TT> is used.
<BR>
The declaration <code>\shortdate</code> will redefine
<code>\today</code> to produce the current date displayed in the form
Wed 8<SUP>th</SUP> Mar, 2000 if the package option
<TT>dayofweek</TT> is used, or 8<SUP>th</SUP> Mar, 2000
if the package option <TT>nodayofweek</TT> is used.
<BR>
The declaration <code>\ddmmyyyydate</code> will redefine
<code>\today</code> to produce
the current date displayed in the form 08/03/2000
<BR>
The declaration <code>\dmyyyydate</code> will redefine
<code>\today</code> to produce
the current date displayed in the form 8/3/2000
<BR>
The declaration <code>\ddmmyydate</code> will redefine
<code>\today</code> to produce
the current date displayed in the form 08/03/00
<BR>
The declaration <code>\dmyydate</code> will redefine
<code>\today</code> to produce
the current date displayed in the form 8/3/00
<BR>
The declaration <code>\textdate</code> will redefine
<code>\today</code> to produce the current date displayed in the form:
Wednesday the Eighth of March, Two Thousand if the package option
<TT>dayofweek</TT> is used, or Eighth of March, Two Thousand if
the package option <TT>nodayofweek</TT> is used. Note that
<code>\textdate</code> is defined for use with English, it won't
look right if it is used when another language has been
selected<A NAME="tex2html2"
HREF="#foot456"><SUP>1</SUP></A>. If you want to define a similar command for
another language, you will first need to check that the
<TT>fmtcount</TT> package supports that language.
<P>
<I>Month</I> <I>Day</I> <I>Year</I> formats:
<BR>
The declaration <code>\usdate</code> will redefine
<code>\today</code> to produce the current date displayed in the form
March 8, 2000. (As TeX and LaTeX do by default.)
<BR>
The declaration <code>\mmddyyyydate</code> will redefine
<code>\today</code> to produce the current date displayed in the form
03/08/2000
<BR>
The declaration <code>\mdyyyydate</code> will redefine
<code>\today</code> to produce the current date displayed in the form
3/8/2000
<BR>
The declaration <code>\mmddyydate</code> will redefine
<code>\today</code> to produce the current date displayed in the form
03/08/00
<BR>
The declaration <code>\mdyydate</code> will redefine
<code>\today</code> to produce the current date displayed in the form
3/8/00
<P>
In addition, the declarations <code>\date</code><I>lang</I> are
available for all languages defined either by
calling <TT>babel</TT> prior to <TT>datetime</TT> or by
passing the language name as an option to <TT>datetime</TT>.
See <A HREF="datetime-manual.html#sec:newdate">later</A>
if you want to define your own customised date format.
<P>
As from version 2.43, the numerical date formats (such as
<code>\ddmmyyyydate</code>) use the command
<code>\dateseparator</code> to separate the numbers. So, for example,
if you want to hyphens instead of slashes, you can do:
<PRE>
\renewcommand{\dateseparator}{-}
</PRE>
<P>
<H1><A NAME="SECTION00040000000000000000">
Time Commands</A>
</H1>
The current time is displayed using the command
<code>\currenttime</code>.
<P>
A specific time can be displayed using
the command <TT>\formattime{</TT><EM>hour</EM><TT>}{</TT><EM>minute</EM><TT>}{</TT><EM>second</EM><TT>}</TT>, where
<I>hour</I> is a number from 0 to 23, and <I>minute</I> and
<I>second</I> are numbers from 0 to 59.
<P>
The format can be changed using the declaration
<TT>\settimeformat{</TT><EM>style</EM><TT>}</TT>, where <I>style</I> is the name of the
format. Predefined formats are:
<DL>
<DT><STRONG>xxivtime</STRONG></DT>
<DD>Twenty-four hour time in the form 22:28 (Default)
</DD>
<DT><STRONG>hhmmsstime</STRONG></DT>
<DD>Twenty-four hour time in the form 22:28:00
</DD>
<DT><STRONG>ampmtime</STRONG></DT>
<DD>Twelve hour time in the form 10:28pm
</DD>
<DT><STRONG>oclock</STRONG></DT>
<DD>Displays the current time as a string, e.g.
Twenty-Eight minutes past Ten in the afternoon.
</DD>
</DL>
<P>
New time formats can be defined using the command:
<BR>
<BR><TT>\newtimeformat{</TT><EM>name</EM><TT>}{</TT><EM>format</EM><TT>}</TT>
<BR>
<BR>
where <I>name</I> is the name of the new format (used in
<TT>\settimeformat</TT>), and <I>format</I> is how to format the
time. Within <I>format</I> you can use the counters
<TT>HOUR</TT> (number of hours after midnight), <TT>MINUTE</TT>
(number of minutes past the hour), <TT>SECOND</TT> (number of
seconds) <TT>HOURXII</TT> (number of
hours after midnight/midday), <TT>TOHOUR</TT> (the next hour) and
<TT>TOMINUTE</TT> (number of minutes to the next hour), and the
corresponding commands: <TT>\THEHOUR</TT>, <TT>\THEMINUTE</TT>, <TT>\THESECOND</TT>,
<TT>\THEHOURXII</TT>, <TT>\THETOHOUR</TT> and <TT>\THETOMINUTE</TT>.
<P>
For example, to define a new time format that uses a dot instead of a
colon:
<PRE>
\newtimeformat{dottime}{\twodigit{\THEHOUR}.\twodigit{\THEMINUTE}}
</PRE>
You then need to switch to this new format before you can use it:
<PRE>
\settimeformat{dottime}
\currenttime
</PRE>
<P>
As from version 2.43, if you only want to change the separator,
you can simply redefine <TT>\timeseparator</TT>
instead of defining a new time format. For example:
<PRE>
\renewcommand{\timeseparator}{.}
</PRE>
The <TT>xxivtime</TT> format will now work like the <TT>dottime</TT>
format defined above.
<P>
<H1><A NAME="SECTION00050000000000000000">
Formating Dates</A>
</H1>
The command <code>\pdfdate</code><A NAME="tex2html3"
HREF="#foot154"><SUP>2</SUP></A> prints the date in the format required for
PDF files, e.g. if the date is 1 May 2004 and time is
22:02, <code>\pdfdate</code> will print 20040501220200. The reason
this date format is separate from all the others is because the
other form doesn't get properly expanded by PDFTeX. (This
command is defined regardless of whether the package option
<TT>nodate</TT> is called.)
Example:
<PRE>
\pdfinfo{
/Author (Me)
/Title (A Sample Document)
/CreationDate (D:20040501215500)
/ModDate (D:\pdfdate)
}
</PRE>
<B>Note</B> that PDFTeX introduced the new primitive
<TT>\pdfcreationdate</TT> in version 1.30.0, so <TT>\pdfdate</TT> isn't
required with newer versions of PDFTeX. (<TT>\pdfcreationdate</TT>
is better than <TT>\pdfdate</TT> as it also stores the time zone.)
<P>
There are two commands that print the name of the current
month:
<code>\monthname</code> prints the current month name in full,
e.g. August, and
<code>\shortmonthname</code> prints the abbreviated month name,
e.g. Aug. Both <code>\monthname</code> and
<code>\shortmonthname</code> take an optional argument (a number from
1 to 12) if the name of a specific month is required. For
example, <code>\monthname[6]</code> will produced the output: June.
<P>
The day of the week is computed using the algorithm documented at
<TT><A NAME="tex2html4"
HREF="http://userpages.wittenburg.edu/bshelburne/Comp150/DayOfWeek.htm">http://userpages.wittenburg.edu/bshelburne/Comp150/DayOfWeek.htm</A></TT>.
This algorithm works for any date between 1<SUP>st</SUP>
Jan, 1901 and 31<SUP>st</SUP> Dec, 2099.
The following macros display the day of week for a given date:
<P>
<TT>\dayofweekname{</TT><EM>day</EM><TT>}{</TT><EM>month</EM><TT>}{</TT><EM>year</EM><TT>}</TT> prints the
day of week for the specified date. For example,
<code>\dayofweekname{31}{10}{2002}</code>
will produce the output: Thursday.
<BR>
<TT>\shortdayofweekname</TT><I>day</I><TT>{</TT><EM>month</EM><TT>}{</TT><EM>year</EM><TT>}</TT> prints the
abbreviated name for the
day of week for the specified date. For example
<BR> <code>\shortdayofweekname{31}{10}{2002}</code>
<BR>
will produce the output: Thu.
<P>
The TeX conditional <code>\ifshowdow</code> can be used to determine
whether or not the option <TT>dayofweek</TT> has been passed to
the package.
For example:
<PRE>
\ifshowdow\dayofweekname{31}{10}{2002} \fi
</PRE>
will only display the day of week if the <TT>dayofweek</TT>
option was passed to <TT>datetime</TT>.
Alternatively, you can use David Carlisle's <TT>ifthen</TT>
package:
<PRE>
\ifthenelse{\boolean{showdow}}{\dayofweekname{31}{10}{2002} }{}
</PRE>
<P>
The command <TT>\ordinaldate{</TT><EM>number</EM><TT>}</TT>
displays <I>number</I> as a date-type ordinal. If the
current language is English, this will simply pass
the argument to <TT>\ordinalnum</TT> (defined in the
<TT>fmtcount</TT> package),
if the current language is Breton, Welsh or French, a superscript
will only be added if <I>number</I> is 1, otherwise only
<I>number</I> will be displayed.
<P>
The macro
<TT>\formatdate{</TT><EM>day</EM><TT>}{</TT><EM>month</EM><TT>}{</TT><EM>year</EM><TT>}</TT><A NAME="tex2html5"
HREF="#foot461"><SUP>3</SUP></A> formats the specified date according to
the current format of <TT>\today</TT><A NAME="tex2html6"
HREF="#foot465"><SUP>4</SUP></A>.
(Arguments must all be integers.) For example, in combination with
<code>\longdate</code>, the command
<PRE>
\formatdate{27}{9}{2004}
</PRE>
will produce the output: Monday 27<SUP>th</SUP> September,
2004.
<P>
You can ensure that a number is displayed with at least two
digits by using the command
<TT>\twodigit{</TT><EM>num</EM><TT>}</TT>.
This is of use if you want to define your own date or time
formats.
<P>
<H1><A NAME="SECTION00060000000000000000"></A><A NAME="sec:newdate"></A>
<BR>
Defining New Date Formats
</H1>
<P>
New date formats can be defined using the command:
<BR>
<BR> <TT>\newdateformat{</TT><EM>name</EM><TT>}{</TT><EM>format</EM><TT>}</TT>
<BR>
<BR>
where <I>name</I> is the name of the new format, and
<I>format</I> is how to format the date. Within the
argument <I>format</I> you can use the commands <TT>\THEDAY</TT>,
<TT>\THEMONTH</TT>
and <TT>\THEYEAR</TT> to represent the relevant day, month and
year, or you can use the counters
<TT>DAY</TT>, <TT>MONTH</TT> and <TT>YEAR</TT> if you want to
use <TT>\ordinal</TT> etc. Once you have defined the
new date format, you can then switch to it using the declaration
<code>\</code><I>name</I>
(i.e. the name you specified preceded by a backslash), and
subsequent calls to <TT>\today</TT> and <TT>\formatdate</TT> will
use your new format.
<P>
For example, suppose you want to define a new date format called,
say, <TT>mydate</TT>, that will typeset the date in the form:
8-3-2002,
then you can do:
<PRE>
\newdateformat{mydate}{\THEDAY-\THEMONTH-\THEYEAR}
</PRE>
<TT>\newdateformat</TT> will then define the declaration
<TT>\mydate</TT> which can be used to
switch to your new format. In the following example,
two new date formats are defined, and they are then
selected to produce two different formats for the current date:
<PRE>
\newdateformat{dashdate}{%
\twodigit{\THEDAY}-\twodigit{\THEMONTH}-\THEYEAR}
\newdateformat{usvardate}{%
\monthname[\THEMONTH] \ordinal{DAY}, \THEYEAR}
Dash: \dashdate\today.
US: \usvardate\today.
</PRE>
If the current date is, say, 8th March, 2002, the above code will
produce the following:
Dash: 08-03-2002.
US: March 8<SUP>th</SUP>, 2002.
<P>
Note that <TT>\THEDAY</TT> etc and <TT>DAY</TT> etc have no real
meaning outside <TT>\newdateformat</TT> (this is why they
are in uppercase). Incidentally, the <TT>dashdate</TT> format
is not really necessary, as you can achieve this format
using:
<PRE>
\renewcommand{\dateseparator}{-}
\ddmmyyyydate
</PRE>
<P>
Another note: in the above code, <TT>\ordinal</TT> was
used to illustrate the use of the <TT>DAY</TT> counter. It
is better to use <TT>\ordinaldate</TT> instead:
<PRE>
\newdateformat{usvardate}{%
\monthname[\THEMONTH] \ordinaldate{\THEDAY}, \THEYEAR}
</PRE>
<P>
<H1><A NAME="SECTION00070000000000000000">
Saving Dates</A>
</H1>
<P>
It is possible to save a date for later use using the command:
<A NAME="tex2html7"
HREF="#foot255"><SUP>5</SUP></A>
<P>
<TT>\newdate{</TT><EM>name</EM><TT>}{</TT><EM>day</EM><TT>}{</TT><EM>month</EM><TT>}{</TT><EM>year</EM><TT>}</TT>
<P>
This date can later be displayed using the same format as that
used by <TT>\formatdate</TT> using the command:
<P>
<TT>\displaydate{</TT><EM>name</EM><TT>}</TT>
<P>
Individual elements of the date can be extracted using the
commands:
<P>
<TT>\getdateday{</TT><EM>name</EM><TT>}</TT>
<P>
<TT>\getdatemonth{</TT><EM>name</EM><TT>}</TT>
<P>
<TT>\getdateyear{</TT><EM>name</EM><TT>}</TT>
<P>
<H1><A NAME="SECTION00080000000000000000">
Predefined Names</A>
</H1>
<P>
The following commands are defined by the <TT>datetime</TT>
package:
<P>
<TABLE CELLPADDING=3>
<TR><TH ALIGN="LEFT"><B>Command Name </B></TH>
<TH ALIGN="LEFT"><B>Default Value</B></TH>
</TR>
<TR><TD ALIGN="LEFT"><TT>\dateseparator</TT></TD>
<TD ALIGN="LEFT"><code>/</code></TD>
</TR>
<TR><TD ALIGN="LEFT"><TT>\timeseparator</TT></TD>
<TD ALIGN="LEFT"><code>:</code></TD>
</TR>
<TR><TD ALIGN="LEFT"><TT>\amname</TT></TD>
<TD ALIGN="LEFT"><TT>am</TT></TD>
</TR>
<TR><TD ALIGN="LEFT"><TT>\pmname</TT></TD>
<TD ALIGN="LEFT"><TT>pm</TT></TD>
</TR>
<TR><TD ALIGN="LEFT"><TT>\amorpmname</TT></TD>
<TD ALIGN="LEFT"><TT>\amname</TT> if morning, otherwise <TT>\pmname</TT></TD>
</TR>
<TR><TD ALIGN="LEFT"><TT>\amstring</TT></TD>
<TD ALIGN="LEFT"><TT>in the morning</TT></TD>
</TR>
<TR><TD ALIGN="LEFT"><TT>\pmstring</TT></TD>
<TD ALIGN="LEFT"><TT>in the afternoon</TT></TD>
</TR>
<TR><TD ALIGN="LEFT"><TT>\amorpmstring</TT></TD>
<TD ALIGN="LEFT"><TT>\amstring</TT> if morning, otherwise
<TT>\pmstring</TT></TD>
</TR>
<TR><TD ALIGN="LEFT"><TT>\halfpast</TT></TD>
<TD ALIGN="LEFT"><TT>Half past</TT></TD>
</TR>
<TR><TD ALIGN="LEFT"><TT>\quarterpast</TT></TD>
<TD ALIGN="LEFT"><TT>Quarter past</TT></TD>
</TR>
<TR><TD ALIGN="LEFT"><TT>\quarterto</TT></TD>
<TD ALIGN="LEFT"><TT>Quarter to</TT></TD>
</TR>
<TR><TD ALIGN="LEFT"><TT>\noon</TT></TD>
<TD ALIGN="LEFT"><TT>Noon</TT></TD>
</TR>
<TR><TD ALIGN="LEFT"><TT>\midnight</TT></TD>
<TD ALIGN="LEFT"><TT>Midnight</TT></TD>
</TR>
<TR><TD ALIGN="LEFT"><TT>\oclockstring</TT></TD>
<TD ALIGN="LEFT"><TT>O'Clock</TT></TD>
</TR>
</TABLE>
<P>
<H1><A NAME="SECTION00090000000000000000">
Package Options</A>
</H1>
<P>
The following options may be passed to this package:
<BR>
<BR> <TABLE CELLPADDING=3>
<TR><TD ALIGN="LEFT"><TT></TD><TD ALIGN="LEFT">long </TT></TD>
<TD ALIGN="LEFT">make <TT>\today</TT> produce long date</TD>
</TR>
<TR><TD ALIGN="LEFT"><TT></TD><TD ALIGN="LEFT">short </TT></TD>
<TD ALIGN="LEFT">make <TT>\today</TT> produce short date</TD>
</TR>
<TR><TD ALIGN="LEFT"><TT></TD><TD ALIGN="LEFT">yyyymmdd </TT></TD>
<TD ALIGN="LEFT">make <TT>\today</TT> produce YYYY/MM/DD date</TD>
</TR>
<TR><TD ALIGN="LEFT"><TT></TD><TD ALIGN="LEFT">ddmmyyyy </TT></TD>
<TD ALIGN="LEFT">make <TT>\today</TT> produce DD/MM/YYYY date</TD>
</TR>
<TR><TD ALIGN="LEFT"><TT></TD><TD ALIGN="LEFT">dmyyyy </TT></TD>
<TD ALIGN="LEFT">make <TT>\today</TT> produce D/M/YYYY date</TD>
</TR>
<TR><TD ALIGN="LEFT"><TT></TD><TD ALIGN="LEFT">ddmmyy </TT></TD>
<TD ALIGN="LEFT">make <TT>\today</TT> produce DD/MM/YY date</TD>
</TR>
<TR><TD ALIGN="LEFT"><TT></TD><TD ALIGN="LEFT">dmyy </TT></TD>
<TD ALIGN="LEFT">make <TT>\today</TT> produce D/M/YY date</TD>
</TR>
<TR><TD ALIGN="LEFT"><TT></TD><TD ALIGN="LEFT">text </TT></TD>
<TD ALIGN="LEFT">make <TT>\today</TT> produce text date</TD>
</TR>
<TR><TD ALIGN="LEFT"><TT></TD><TD ALIGN="LEFT">us </TT></TD>
<TD ALIGN="LEFT">make <TT>\today</TT> produce US style date</TD>
</TR>
<TR><TD ALIGN="LEFT"><TT></TD><TD ALIGN="LEFT">mmddyyyy </TT></TD>
<TD ALIGN="LEFT">make <TT>\today</TT> produce MM/DD/YYYY date</TD>
</TR>
<TR><TD ALIGN="LEFT"><TT></TD><TD ALIGN="LEFT">mdyyyy </TT></TD>
<TD ALIGN="LEFT">make <TT>\today</TT> produce M/D/YYYY date</TD>
</TR>
<TR><TD ALIGN="LEFT"><TT></TD><TD ALIGN="LEFT">mmddyy </TT></TD>
<TD ALIGN="LEFT">make <TT>\today</TT> produce MM/DD/YY date</TD>
</TR>
<TR><TD ALIGN="LEFT"><TT></TD><TD ALIGN="LEFT">mdyy </TT></TD>
<TD ALIGN="LEFT">make <TT>\today</TT> produce M/D/YY date</TD>
</TR>
<TR><TD ALIGN="LEFT"><TT></TD><TD ALIGN="LEFT">raise </TT></TD>
<TD ALIGN="LEFT">make ordinal st,nd,rd,th appear as superscript</TD>
</TR>
<TR><TD ALIGN="LEFT"><TT></TD><TD ALIGN="LEFT">level </TT></TD>
<TD ALIGN="LEFT">make ordinal st,nd,rd,th appear level with rest of
text</TD>
</TR>
<TR><TD ALIGN="LEFT"><TT></TD><TD ALIGN="LEFT">dayofweek </TT></TD>
<TD ALIGN="LEFT">make the day of week appear for <TT>\longdate</TT>,
<TT>\shortdate</TT></TD>
</TR>
<TR><TD ALIGN="LEFT"><TT></TD><TD ALIGN="LEFT"></TT></TD>
<TD ALIGN="LEFT">or <TT>\textdate</TT></TD>
</TR>
<TR><TD ALIGN="LEFT"><TT></TD><TD ALIGN="LEFT">nodayofweek </TT></TD>
<TD ALIGN="LEFT">don't display the day of week.</TD>
</TR>
<TR><TD ALIGN="LEFT"><TT></TD><TD ALIGN="LEFT">hhmmss </TT></TD>
<TD ALIGN="LEFT">make <TT>\currenttime</TT> produce <TT>hhmmsstime</TT>
format</TD>
</TR>
<TR><TD ALIGN="LEFT"><TT></TD><TD ALIGN="LEFT">24hr </TT></TD>
<TD ALIGN="LEFT">make <TT>\currenttime</TT> produce <TT>xxivtime</TT>
format</TD>
</TR>
<TR><TD ALIGN="LEFT"><TT></TD><TD ALIGN="LEFT">12hr </TT></TD>
<TD ALIGN="LEFT">make <TT>\currenttime</TT> produce <TT>ampmtime</TT>
format</TD>
</TR>
<TR><TD ALIGN="LEFT"><TT></TD><TD ALIGN="LEFT">oclock </TT></TD>
<TD ALIGN="LEFT">make <TT>\currenttime</TT> produce <TT>oclock</TT>
format</TD>
</TR>
<TR><TD ALIGN="LEFT"><TT></TD><TD ALIGN="LEFT">nodate </TT></TD>
<TD ALIGN="LEFT">Don't redefine <TT>\today</TT> or define the month or
day of week commands</TD>
</TR>
<TR><TD ALIGN="LEFT"><TT></TD><TD ALIGN="LEFT"></TT></TD>
<TD ALIGN="LEFT">(useful if you only want the time commands)</TD>
</TR>
<TR><TD ALIGN="LEFT"><TT></TD><TD ALIGN="LEFT">iso </TT></TD>
<TD ALIGN="LEFT">as ddmmyyyy and hhmmss but also sets date separator to -</TD>
</TR>
<TR><TD ALIGN="LEFT"><TT></TD><TD ALIGN="LEFT"></TT></TD>
<TD ALIGN="LEFT">and time separator to :</TD>
</TR>
</TABLE>
<P>
The default options are: <TT>long</TT>, <TT>raise</TT>,
<TT>dayofweek</TT> and <TT>24hr</TT>.
<P>
<H1><A NAME="SECTION000100000000000000000">
Multilingual Support</A>
</H1>
<P>
If you use the <TT>ngerman</TT> package, you must use <TT>datetime</TT>'s
<TT>ngerman</TT> package option if you want the date displayed
in the same form as <TT>ngerman</TT>. You must also load <TT>ngerman</TT>
<I>before</I> you load <TT>datetime</TT>. Similarly for the
<TT>german</TT> package.
<P>
If you want to use the <TT>babel</TT> package, you must load
it <I>before</I> you load the <TT>datetime</TT> package. This
is because the <TT>babel</TT> <TT>\date</TT><I>lang</I> commands
redefine <TT>\today</TT>, whereas the <TT>datetime</TT> package
redefines <TT>\today</TT> to use <TT>\formatdate</TT>, and the
date formatting commands (such as <TT>\longdate</TT>) redefine
<TT>\formatdate</TT> rather than <TT>\today</TT>. This ensures
consistent formatting of the dates whether you use <TT>\today</TT> or
<TT>\formatdate</TT>. Therefore, the <TT>datetime</TT> package
has to redefine all the <TT>\date</TT><I>lang</I> commands accordingly.
Thus the multilingual date support is mostly limited to that provided
by <TT>babel</TT>. Additional support, such as the day of
week names and abbreviations, are only supplied for those
languages that I know, or that other people have been able to supply
for me.
<P>
As from v2.56, the package options supplied to <TT>datetime</TT>
override <TT>babel</TT>'s date format. For example:
<PRE>
\usepackage[french,spanish]{babel}
\usepackage[ddmmyyyy]{datetime}
</PRE>
will use ddmmyyyy date format regardless of language. Note that
if you use a declaration instead of a package option, for
example:
<PRE>
\usepackage[french,spanish]{babel}
\usepackage{datetime}
\ddmmyyyydate
</PRE>
the date format will be switched back to <TT>\datefrench</TT> or
<TT>\datespanish</TT> whenever the language is set. You can use
<P>
<TT>\setdefaultdate{</TT><EM>declaration</EM><TT>}</TT>
<P>
to always use <TT>{</TT><EM>declaration</EM><TT>}</TT> whenever the language
is set. For example:
<PRE>
\setdefaultdate{\ddmmyyyydate}
</PRE>
<P>
The commands <TT>\monthname</TT> and <TT>\shortmonthname</TT>,
will produce the month name in the current language.
If you want the month name in a specific language, you
can use the command <TT>\monthname</TT><I>lang</I>.
For example, <code>\monthnamefrench[6]</code> will produce the output:
juin. Note that <TT>\textdate</TT> is formatted for English dates,
and won't look right if used with another language setting. If you
want a textual date, the <TT>fmtcount</TT> package (which is
loaded by <TT>datetime</TT>) defines some commands which display
a number or ordinal as a word, but it only has very limited
multilingual support. See the <TT>fmtcount</TT> documentation
for further details.
<P>
There is currently only <I>limited</I> multilingual support for
<TT>\dayofweekname</TT> and <TT>\shortdayofweekname</TT> (just
English, French, Portuguese, Spanish and German<A NAME="tex2html8"
HREF="#foot394"><SUP>6</SUP></A>). You can add support
for other languages by defining the commands
<TT>\dayofweeknameid</TT><I>lang</I> and
<TT>\shortdayofweeknameid</TT><I>lang</I>. Note that these
commands only take <I>one</I> argument which should be
a number from 1 to 7 indicating the day of the week.
<P>
You can use the following as templates. Replace
<TT>english</TT> with the name of your language (as given
by <TT>\languagename</TT>) and replace <TT>Sunday</TT>
etc as appropriate:
<PRE>
\providecommand*{\dayofweeknameidenglish}[1]{%
\ifcase#1\relax
\or Sunday%
\or Monday%
\or Tuesday%
\or Wednesday%
\or Thursday%
\or Friday%
\or Saturday%
\fi}
\providecommand*{\shortdayofweeknameidenglish}[1]{%
\ifcase#1\relax
\or Sun%
\or Mon%
\or Tue%
\or Wed%
\or Thu%
\or Fri%
\or Sat%
\fi}
</PRE>
If you want them added to future versions of
<TT>datetime</TT>, please email me the code.
<P>
<H1><A NAME="SECTION000110000000000000000">
Registers</A>
</H1>
<P>
TeX provides <TT>\day</TT>, <TT>\month</TT>, <TT>\year</TT> registers. In
addition, <TT>datetime</TT> provides the registers:
<TT>\currenthour</TT>, <TT>\currentminute</TT> and <TT>\currentsecond</TT>.
Note that old distributions of TeX will always have
<TT>\currentsecond</TT> set to zero.
<P>
<H1><A NAME="SECTION000120000000000000000">
Configuration File</A>
</H1>
<P>
As from Version 2.4, the <TT>datetime</TT> package will read in settings
from the configuration file <TT>datetime.cfg</TT>, if it exists,
which will override the default package options. For example,
suppose you prefer a short date without the day of week by default,
you will need to create a file called <TT>datetime.cfg</TT> that
contains the line:
<PRE>
\shortdate\showdowfalse
</PRE>
The file <TT>datetime.cfg</TT> should then go somewhere on the
TeX path. Now all you need to do is:
<PRE>
\usepackage{datetime}
</PRE>
without having to specify the <TT>short</TT> and
<TT>nodayofweek</TT> options.
<P>
You can also use this file to define and set your own date
styles. For example, you could create
a configuration file that has the following lines:
<PRE>
\newdateformat{dashdate}{\twodigit{\THEDAY}-\twodigit{\THEMONTH}-\THEYEAR}
\dashdate
</PRE>
Whenever you use the <TT>datetime</TT> package, it will now
use this format by default.
<P>
<H1><A NAME="SECTION000130000000000000000">
LaTeX2HTML styles</A>
</H1>
<P>
Version 2.43 and above of the <TT>datetime</TT> bundle
supplies the LaTeX2HTML style file <TT>datetime.perl</TT>.
This file should be placed in a
directory searched by LaTeX2HTML. The following limitations
apply to the LaTeX2HTML styles:
<P>
<UL>
<LI>The configuration file <TT>datetime.cfg</TT>
is currently ignored. (This is because
I can't work out the correct code to do this. If you
know how to do this, please let me know.) You can however
do:
<PRE>
\usepackage{datetime}
\html{\input{datetime.cfg}}
</PRE>
This, I agree, is an unpleasant cludge.
<P>
</LI>
<LI>The commands <TT>\monthname</TT><I>language</I> are not
implemented.
<P>
</LI>
<LI>Some of the languages are not implemented.
<P>
</LI>
<LI>The package option <TT>nodate</TT> is not implemented.
<P>
</LI>
</UL>
<P>
<H1><A NAME="SECTION000140000000000000000">
Troubleshooting</A>
</H1>
<P>
There is a <TT>datetime</TT> FAQ available at:
<TT><A NAME="tex2html9"
HREF="http://theoval.cmp.uea.ac.uk/~nlct/latex/packages/faq/">http://theoval.cmp.uea.ac.uk/~nlct/latex/packages/faq/</A></TT>
<P>
<BR><HR><H4>Footnotes</H4>
<DL>
<DT><A NAME="foot456">...
selected</A><A
HREF="datetime-manual.html#tex2html2"><SUP>1</SUP></A></DT>
<DD>in fact, you may get an error from the
<TT>fmtcount</TT> package if you are using a language that it
doesn't support.
</DD>
<DT><A NAME="foot154">... <code>\pdfdate</code></A><A
HREF="datetime-manual.html#tex2html3"><SUP>2</SUP></A></DT>
<DD>thanks to Ulrich Dirr for
asking about this
</DD>
<DT><A NAME="foot461">...year</A><A
HREF="datetime-manual.html#tex2html5"><SUP>3</SUP></A></DT>
<DD>Note the
name change since version 1.1. The command name was changed from
<TT>\thedate</TT> to <TT>\formatdate</TT> to avoid a name clash when using the
<TT>seminar</TT> class file.
</DD>
<DT><A NAME="foot465">...today</A><A
HREF="datetime-manual.html#tex2html6"><SUP>4</SUP></A></DT>
<DD>To be more precise,
<TT>\today</TT> is defined to be
<TT>\formatdate{<TT>\day</TT>}{<TT>\month</TT>}{<TT>\year</TT>}</TT> where
<TT>\longdate</TT> etc change the definition of <TT>\formatdate</TT>
</DD>
<DT><A NAME="foot255">... command:</A><A
HREF="datetime-manual.html#tex2html7"><SUP>5</SUP></A></DT>
<DD>Thanks to Denis Bitouzé for asking about this
</DD>
<DT><A NAME="foot394">... German</A><A
HREF="datetime-manual.html#tex2html8"><SUP>6</SUP></A></DT>
<DD>thanks
to Uwe Bieling for supplying the German names
</DD>
</DL>
<BR><HR>
<ADDRESS>
<A href="http://theoval.cmp.uea.ac.uk/~nlct/">Nicola L. C. Talbot</A>.
<A HREF="http://www.cmp.uea.ac.uk/">School of Computing Sciences</A>.
<A HREF="http://www.uea.ac.uk/">University of East Anglia.</A>
Last Modified: 2009-11-17
</ADDRESS>
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