I feel that it is important to share this. Island time was a high-strung discussion for my wife and I. Island time is basically not having a set-time.
Good: This is great for a true-vacationer, trying to get away from the hustle & bustle of everyday life, time schedules, stress, etc. etc. It has its merits and free-spirit feel which is truly relaxing and can be enjoyable.
Bad: However..........Island time can be VERY expensive in that.......tours times, airplane flights, car-rental pick-ups, etc., are NOT island time. Another words, you have to be at certain places at certain times, if not in advance. For example, tours may begin at such and such time but they expect you to be there 15-30-45 minutes ahead of time. This is obviously the case with airports except, you need to be there much sooner than that for customs, security, etc.
Therefore, if your tax-driver is on "island-time", or if any other part of your experience prior to your "timed" destination is utilizing "Island Time", then you run the risk of being late for a "be-there-or-lose-your-deposit or reservation" experience.
No, this did not happen to us, but my wife didn't see the stress that Island Time actually CREATED on occasion because if you were in a hurry to get somewhere and the person you were working with (again - this could be anyone, even a hotel check-out receptionist, local store owner, taxi driver, rental car receptionist, etc.) then Island Time ran the risk of you losing your deposit or reservation. And.....to a degree....it was sometimes rude or in my eyese, an excuse to be slow.
Again, Island Time can be a great thing, but it can also be abused and it can also get you in trouble for things that are "not" based on Island Time. This is only meant as a "heads-up" consideration.