How to set timmer and Shut down Computer after 3 hours

How to set Timmer in Batch file ?

How to shutdown computer after 3 hours ?? 

Syntax
timeout	goto	:start	\t   /s

Description:-

This timeout command useful for pausing batch file,  number of seconds

Examples:-

timeout /t 100

Pause programme for 100 seconds. /t back slash t

Sample programme 1 :-

How to find statistic of internet data line for one-hour.

@echo off

:: create file name shut.bat 

timeout  \t  300

:: pause batfile runing in 300 seconds

shutdown  /s \t300

:: shutdown computer after conting 300 seconds

exit

Sample programme 2 :-

@echo off

:: create file name record.bat 

::record directory listing every 5 minutes

:start

dir c:\bat\*.*    >>   c:\bat\dirlist1.txt

timeout  \t  300

:: 300 equal to 5 minutes 

goto start

exit

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