Batch file IF %time% not working

batch-filems-dos

I'm trying to make a batch file to shutdown PCs if they're used out of the allowed times.
It'll be triggered on boot, but because you can't have 'if and' triggers in Windows Task Scheduler it was necessary to build the time check in to the script.

I've used the following method but it isn't working.
Does anybody know why?

IF "%TIME:~0,5%" GEQ "19:58" IF "%TIME:~0,5%" LSS "08:58" (MSG * "Your device has not been authorised for use at this time and will now shutdown." && SHUTDOWN -s -t 120)

Best Answer

Try this:

SET "ADJUSTEDTIME=%TIME: =0%"
IF "%ADJUSTEDTIME:~0,5%" GEQ "19:58" GOTO :SHUTDOWN  
IF "%ADJUSTEDTIME:~0,5%" LSS "08:58" GOTO :SHUTDOWN  
GOTO :EOF  
:SHUTDOWN  
MSG * "Your device has not been authorised for use at this time and will now shutdown."  
SHUTDOWN -s -t 120
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