There are four basic counters Daily <xt:counter type="1" />
1 Weekly <xt:counter type="2" /> 4 monthly <xt:counter type="3" /> 18 Total <xt:counter type="4" /> 8486
Using html you can also set a timezone for types 1 , 2 ,3 so that the counter will reset at your local midnight i.e: <xt:counter type="1" tzone="5.5" />