We actually use time tracking on tasks on a monthly basis. We would like to change to a weekly basis but this not even possible in Wrike because it is only possible to log time in hours and 23h maximum.
It would be very useful to be able to log time in days because tracking time everyday would be too heavy for our project members. Also our tasks duration can be weeks and the project member work on the same subject for many days. Therefore it makes no sense to log time everyday.