Antalya is on Turkish time, UTC+3, like the rest of the country. What changes from city to city is the daylight.
Turkey keeps one time zone across roughly 1,600 km, so the clock in Antalya matches Istanbul exactly while the sun rises at a different moment. The figures above are calculated for Antalya's own coordinates and update as the date changes.
Antalya is the centre of Turkey's Mediterranean coast and the arrival point for most beach holidays in the country. The old town, Kaleiçi, sits inside Roman and Ottoman walls above a working harbour.
Being the furthest south of Turkey's big cities, Antalya has the most even day length across the year — its winter days are noticeably longer than Istanbul's.
Antalya is in the Mediterranean region of Turkey.