I don't think it's hair splitting at all...especially since we have already seen one of these auctions be bid on at the very last minute and won.....I think this might be a better topic for the main board. There still won't be a "rule" I don't think, but this is info everyone should really be aware of. To your exact reasoning though....to me, and I am not always in the majority, if it ends at 10....and we don't have a second clock, then the whole minute of 10:00 is still open....then at 10:01 it is closed....but that is just me....I say you might start a thread on the new board about it....I start too many

....or we can debate it here...
edited to add that after going back and re-reading your last post I think you have a good point...as at 10 I guess it should be closed?