My problem is rather straight-forward.

My computer automatically shuts down every Wednesday morning at 3 am. The code used to look like "shutdown.exe /r /t 5" I changed it to just "shutdown.exe /r" because using /t caused it to 'force' programs to quit. However, in both situations, I seem to be missing variables I've set over the past week when I wake up Wednesday morning.

What I'm trying to figure out is how to use a /timer in mIRC to shut down mIRC before my computer does.
I know timers can determine a specific time, such as 3am, but can timers also tell the day of the week? This is my biggest hurdle here.

tl;dr - I need to use an mIRC command to close mIRC 'nicely' so I don't lose variables when my computer automatically shuts down.