Show peak concurrent site users

I'm looking for a way to guess how many concurrent users my site gets during "peak hours" and when those "peak hours" occur.

I think clicky could possibly show this information because it does show the number of concurrent site visitors in the spy.

I just don't know how to get a history of concurrent users.

It would also be nice to have a report showing number of visitors per hour of day, or per hour of the week, for N days or N weeks. This would give a good idea of what our "peak times" are, if any.

Well we don't currently keep track of concurrent users online. It's quite intensive to calculate so we only do it when you're actually viewing your stats.

I agree that this would be really useful. It's something that isn't easy to track, so please, figure it out for us! :)

I would be happy with even an event/goal when a set number of concurrent visitors is online I get an email.

Any updates about this suggestion?