datetime.sty history

Version 2.59:

 * Made \ordinaldate robust.

 * Renamed \ifleapyear to \ifDTleapyear to help avoid name clash
   with other packages. (If \ifleapyear hasn't been defined, 
   it's defined to \ifDTLleapyear for backward compatibility.)

 * New: \DTifDefLoaded, \DTloadDefIfNotLoadedButExists

Version 2.58:

 * Added Polish days of the week (supplied by Piotr Kempa).

 * Fixed bug that caused some of the def files to be truncated when
   unpacked from the dtx file.

 * Added \loadDTdef to ensure dt-*.def files are only loaded once. 

Version 2.57:

 * Added Romanian days of the week (supplied by Daniel Dumitriu).

Version 2.56:
 * Added \formattime. (Specific times can now be displayed in
   the same format as \currenttime)
 * Added new date format yyyymmdd
 * Added new time format hhmmss
 * Added new package option "iso"
 * datetime package options now override babel's date format
 * Moved definition of \newdateformat and \newtimeformat before 
   configuration file is loaded.

Version 2.55:

 * fixed bug preventing multilingual support
 * fixed copyright text

Version 2.54: added check for british babel setting.

Version 2.53: added checks for UKenglish and USenglish.

Version 2.52: fixed bug in \textdate arising from change in
fmtcount internals.

Version 2.51: fixed time between midnight and 1am

Version 2.5: Added (n)german week day names (thanks to Uwe Bieling)
for supplying this. Fixed minor bugs.

Version 2.49: Fixed some of the multilingual problems, tidied up
code documentation

Version 2.48: Fixed bug in \pdfdate

Version 2.47: Defined \ier if it doesn't already exist.

Version 2.46: Made \today robust.

Version 2.45: Added command to store dates.

Version 2.44: Fixed spelling mistakes (oops!) and minor 
bugs in LaTeX2HTML style files

New to version 2.43: Package now compatible with 
LaTeX2HTML

New to version 2.42: Package now compatible with babel.

New to version 2.41: Package has been split into two 
files: datetime.sty and fmtcount.sty.  The latter file 
contains the definitions for all the macros that display 
the value of a counter (e.g. \ordinal, \octal).
Extra macro \decimal added (like \arabic, but can pad it 
with leading zeroes.)

New to version 2.4: New commands: \binary, \octal, 
\hexadecimal, \aaalph, \abalph, \Hexadecimal, \AAAlph 
and \ABAlph.  Added provision for configuration
file datetime.cfg.

New to version 2.31: The command \pdfdate has been added
(minor bug fixed in version 2.32)

New to version 2.3: The command \newtimeformat can be 
used to define new time formats.  Added the command 
\currenttime

New to version 2.2: The command \newdateformat can be 
used to define new date formats in addition to the ones 
provided by this package.

see accompanying README file for license and installation
information.

http://theoval.cmp.uea.ac.uk/~nlct/