limiting search while getting timeslots from appointment scheduling module

I am calling following uri for openmrs. /openmrs/ws/rest/v1/appointmentscheduling/timeslot?fromDate=2016-08-13T05:00:00.000+0530&toDate=2016-08-14T05:00:00.000+0530

When I am trying it as following /openmrs/ws/rest/v1/appointmentscheduling/timeslot this works fine. But when I am trying to limit results returning with from date and to date its not working. Please help.

Can you paste the server log at

I am not getting any logs for this. I guess because I took complete setup files from demo setup zip I am having loggin disabled. How to proceed further ? I am an UI developer so not sure how and from where I can take logs. Can you elaborate a little more on this ?