__WINDOWS__
C:\usr\local\share\PassThru\perl>perl -wMstrict -le "$a=time;$SIG{ALRM}=sub{$b=time};alarm 2;<>;print $b-$a"

Use of uninitialized value $b in subtraction (-) at -e line 1, <> line 1.
-1532115378
__LINUX__
pryrt@pryrtdebian:~$ perl -wMstrict -le '$a=time;$SIG{ALRM}=sub{$b=time};alarm 2;<>;print $b-$a'

2