Daily basis parity information about Turkish Lira could be found at website of Turkish Central Bank; http://www.tcmb.gov.tr/
Banks are open from 9:00 to 17:00 from Monday till Friday. Most banks stay open at midday. Transfers from your bank can take up to ten days. Check with your bank to see if they have a corresponding Turkish bank partner. ATMs can be found throughout the cities and on the university’s campuses.
You can open a bank account during your stay in Turkey. You need to take along with you your passport, an attendance certificate or student card and a residence paper.