Hello i have the following batch file:

echo off
:: variables
set drive=W:\JoseNunes\backup
set backupcmd=xcopy /s /c /d /E /h /i /r /y

SET dd=%DATE:~0,2%
SET mm=%DATE:~3,2%
SET yyyy=%DATE:~6,4%

SET hh=%TIME:~0,2%
SET mn=%TIME:~3,2%
SET ss=%TIME:~6,2%

set dayfolder="%yyyy%-%mm%-%dd%"
set timefolder="%hh%%mn%%ss%"

echo ###checking if daily folder exists
IF NOT EXIST "%drive%\%folder%\". (
   echo ###creating dayli folder.
   md "%drive%\%dayfolder%\".
   echo ###daily folder created.
)

IF NOT EXIST "%drive%\%folder%\%timefolder%\". (
   echo ###creating dayli folder.
   md "%drive%\%dayfolder%\%timefolder%\".
   echo ###daily folder created.
)
   
echo ### Gestware BD...
%backupcmd% "C:\20988" "%drive%\%dayfolder%\%timefolder%\Gestware"

echo Backup Complete!
pause


THis batch makes a backup of some files i NEED and creates a folder with the day and inside that one with the hour.
I need to delete folder older than 30 days.


Thanks in advanceIn general, batch code does not do date/time arithmetic. I did see a batch solution once but it was 7 pages of ponderous code and seemed like a lot of overhead for what really is a simple task in any other language.

If you can, download ForFiles. This is a Microsoft batch utility you can insert into your existing batch code. After unzipping the executable into a directory, run forfiles --h from the command prompt for the online help.

You might also consider a separate VBSCRIPT or Powershell SCRIPT to do the folder aging and deleting by calling it from your batch file. Lots of possibilities limited only by your imagination.