Opening Hours on Pamukkale
The Pamukkale travertine pools and the archeological site of the Romany town of Hierapolis are open 24 hours a day,7 days a week. However some of the facilities have more limited hours.
Hierapolis Archaeology Museum is open from 9 in the morning until 12:30 then again in the afternoon from 1:30 until 7pm. It is closed on Mondays. This is the building that encloses the original Roman Baths and houses a display of the smaller and more fragile finds from the site such as coins and other small objects in one of it's three galleries. The other two galleries are given over to statues and sarcophagi respectively.
Antique Pool Spa - the Cleopatra's Antique Pool, where you may swim in the health giving waters among the fallen columns of the Temple of Apollo is open from from 9am until 7pm, but last entry is at 6:15.
The travertine pools are open at all hours.