This is just a quick hack for generating word clocks see http://miniaturegiantspacehamster.blogspot.com/2011/03/building-word-clock-part-1-genetic.html for more details! relevant parts of the porgram output: check ok: total number of strings that can be represented (e.g. "four thirty", "half past four", ...) nok: total number of strings that can not be represented times ok: from the 144 5-minutes intervals (1:05, 1:10, ...) how many can be represented? nok: how many times intervals can not be represented (i.e. the clock is not usable as long as there are more then 0)