scripting - Adding to %TIME% variable in windows cmd script

Question

I realize that this could probably be done easier in any number of other scripting languages but started to do it quick in cmd and now Im curious.

Looking to start a process at an offset to the time that another process started. Lets say 5 minutes to keep it simple. Is there a way to add to the %TIME% variable?

For instance:

start /b foo.exe
at %TIME% + 5 minutes bar.exe

Thanks for any assistance

Answer 1

I just typed set/? and discovered cmd is much better than old bat... :-)

set h=%TIME:~0,2%
set m=%TIME:~3,2%
set/a m2="m+5"
set t2=%h%:%m2%
set t2

Obviously, you can get 62 minutes, etc., I let you do the extra math... :-D