@echo off
set time=%@eval[(%@substr[%_TIME,0,2]*3600) + (%@substr[%_TIME,3,2]*60) + (%@substr[%_TIME,6,2]) ]
make.exe %1 %2 %3
set time=%@eval[(%@substr[%_TIME,0,2]*3600) + (%@substr[%_TIME,3,2]*60) + (%@substr[%_TIME,6,2]) - %time]
echo Compile time was %time seconds.

