If you live in a very high humidity clime, it is not a good idea to increase the thermostat temperature in the cooling mode if you are only going to be setting it back for a few hours at a time. The higher the temperature of the structure goes, the more humidity is allowed into the air that will also permeate walls, floors and furnishings. The amount of energy saved over a brief period will be overwelmed by the amount of additional energy it will require in order to remove the additional moisture that was allowed into the dwelling during the rise in temperature period.
In humid areas, I suggest not setting thermostats to a higher temperature unless the dwelling is going to be unoccupied for more then 48 hours. In dryer parts of the world, the thermostat can be set up for any period of away time and will save energy for the lack of usage during that time.