I guess you're fine with displaying 24:00 instead of 00:00, but I'd like to point out that if you're going to use more than "HH:nn[:ss]" (like days, weeks, whatever), you need a $ctime calculation in order to make it work properly (ie. "30/10/03 00:05" rather than "29/10/03 24:05"). This can be achieved using $time($calc(3600+$ctime) [,format])
