Forums General Discussion Poll: Who uses a timestamp, if so why?

A lot of the channels I use are idle for long periods of time and then maybe a conversation will appear out of the blue. When I come back from idling myself it's important to know whether the conversation I see on the screen occurred in the last few minutes and that people might still be around or whether it happened hours ago and I'll be wasting my time trying to talk to any of them.

I just use the basic [HH:nn:ss] format. I've never been on a channel so idle that I couldn't tell what day something happened on.