Working hours are from 7am to 15pm every day. Working with clients is done solely at the counter from 10am to 13pm. Expert associate for studies and students’ questions (for Chemistry Studies) is: Marko Popović Chemistry Studies Officer Dean’s Offices Office No 7 (ground floor) Phone: +381-21-485-2712E-mail: studentska@dh.uns.ac.rsmarko.popovic@pmf.uns.ac.rs More information can be found at the following link: STUDENT SERVICES on the Faculty of Science