I think dang said recently it was something like 8 hours. Beyond that you can resubmit. I've had cases where I've submitted something and it just takes me to th

I think dang said recently it was something like 8 hours. Beyond that you can resubmit. I've had cases where I've submitted something and it just takes me to the thread where someone else posted it and it automatically gives them an upvote from me.