Adding timestamps in a DOS batch file

@echo off
cls
rem Timestamp Generator
rem Parse the date (e.g., Fri 02/08/2008)
set cur_yyyy=%date:~10,4%
set cur_mm=%date:~4,2%
set cur_dd=%date:~7,2%
rem Parse the time (e.g., 11:17:13.49)
set cur_hh=%time:~0,2%
if %cur_hh% lss 10 (set cur_hh=0%time:~1,1%)
set cur_nn=%time:~3,2%
set cur_ss=%time:~6,2%
set cur_ms=%time:~9,2%
rem Set the timestamp format
set timestamp=%cur_yyyy%%cur_mm%%cur_dd%-%cur_hh%%cur_nn%%cur_ss%%cur_ms%
rem Do something with it
echo Timestamp: %timestamp%
rem Clear the environment variables
set cur_yyyy=
set cur_mm=
set cur_dd=
set cur_hh=
set cur_nn=
set cur_ss=
set cur_ms=
set timestamp=

Source: http://ings.ca/jim/2008/02/10/adding-timestamps-in-a-dos-batch-file/