We were able to select our own times. Try to give yourself enough time in the town as it's so cute. We went to shops and then to lunch. And the butterfly exhibit was great. Personally, I went to the animal place with the koala bears and was able to hold one. There is an extra charge of about $20 or so but it was well worth it. Take the train there and the sky tram back. It's amazing. Some in our group only scheduled an hour in town and were so sad. I think my friends and I did three hours and I wish we had a few more hours.
You can do lots of variations we were picked up at 8am went to departure station of sky rail , then we caught train all the way back to Cairns central late afternoon
it varies according to where you are staying
we were staying close to the town centre and from memory it was about 7 15-7 30ish