/timer.url.counter.reset -o 17:35 0 86400 set %varname 0
/timer.url.counter.reset.once.off -o 17:35 1 0 set %varname 0
These both go of at 5:25pm aka 17:35 (so set that to what ever you want), the first then sets off a endless timer that goes off once every 24hours aka 86400 seconds, the second one is needed becuase the first one doesant go off when its 5:35pm the first time, but rather sets off a 86400 second delayed timer, so it goes off the next day, thus u need a once off timer to go off then and there as well.