[Andreas1973]

For date flag in windows u can use:

for /F %%i in ('time /t') do set ZEIT=%%i
for /F "tokens=1,2,* delims=:" %%i in ('echo %zeit%') do set OZeit=%%i%%j
for /F %%i in ('date /t') do set DATUM=%%i
for /F "tokens=1,2,* delims=." %%i in ('echo %datum%') do set RDATUM=%%k%%j%%i

This is working with German settings. With english time output on command line you may have to change it a little bit...
Hope it helps!