The prefix for international calls from Turkey is 00 and for national local calls it is 0. All post offices bear the yellow PTT sign. If you intend to use your calling card at your hotel, check with them whether they charge for it. Turkey is a paradise of Internet Cafes where you can use the computers and the access while you pay a fee charged per hour. TIME Turkish time is East European Time, two hours ahead of Coordinated Universal Time.
Plugs are of the European variety with two round prongs, but there are two sizes in use.
Most common is the small-diameter prong. Take your adapter with you if you intend to take any electrical appliances with you. You can easily understand that from your check. Taxi drivers are not tipped unless they do something special for you. However, you round off the metered rate instead.