echo %date:~0,4%

echo %date:~5,2%

echo %date:~8,2%

@echo off
echo wscript.echo dateadd("d",-1,date) >%tmp%\datetime.vbs
for /f %%d in ('cscript /nologo %tmp%\datetime.vbs') do set datetime=%%d
del /Q %tmp%\datetime.vbs
echo %datetime%