What is shortest ban and how to get it?

1 day ban, get 5+ active infractions and you will get that

don't they take longer?
And it's kinda hard

Try to login in a staff account
Something like 1 day or less, not sure

Try go lof into hampa that's a easy 1 day ban maybe contact kitfox might work as well

but is there a one hour ban or some bans that lasts few hours (less than a day)?

There was this account "LoginToThisAccountAndGetBanned" that's how i got banned for 1 day.

Post "derp" on 2 threads and you will get 2x4 point infractions and get a 1 day ban, that's pretty easy and fast.

or just post on some thread where u can say for example who your favorite gm is and dont say the reason (easiest infraction points of my life)

Shortest ban I(smods) can set is 3 hours. Don't know about superiors.

To get? Dunno, do something so stupidly harmless.