YYYYMMDD displays the date in form YYYY-MM-DD, without
CrLf. You can thus PIPE it into files:
        YYYYMMDD.com >> MyFile.Txt
to internally date stamp them.
Optional separator can be put on the command line.
e.g. if you wanted ISO 8601:1988 international standard
yyyy-mm-dd format, on the command line, or in a bat file
type:
     YYYYMMDD -
       gives 2000-12-31
     YYYYMMDD " "
     gives 2000 12 31
     YYYYMMDD .
       gives 2000.12.31
     YYYYMMDD /
       gives 2000/12/31
You can pipe the result into files:
        YYYYMMDD.exe >> MyFile.Txt
If you wanted a 2-digit year: yy-mm-dd format, on the
command line, or in a bat file type:
     YYMMDD -
       gives 00-12-31
     YYMMDD none
       gives 001231
     YYMMDD space
       gives 00 12 31
     YYMMDD .
       gives 00.12.31
     YYMMDD /
       gives 00/12/31
     YYMMDD
       gives 00-12-31
You can pipe the result into files:
        YYMMDD.com >> MyFile.Txt
If you wanted 24-hour time: hh:mm format, on the command
line, or in a bat file type:
     HHMM :
       gives 23:59
     HHMM -
       gives 23-59
       gives 2359
     HHMM " "
       gives 23 59
     HHMM .
       gives 23.59
     HHMM
       gives 23:59
You can pipe the result into files:
        HHMM.com >> MyFile.Txt
Often used in conjunction with HHMM to stamp the time.
There is no support for other formats: e.g. MM/DD/YYYY or DD/MM/YYYY.
The *.com files are for DOS. the *.exe files are for use in Windows.
Just place yyyymmdd.exe yymmdd.exe and hhmm.exe somewhere on the path.