The dehumidifier has got a humidistat, just don’t want it to come on at night. Cheapest option might just be a boggo digital timer switch.
In that case, yes a cheapo digital. Were you working on the basis of ‘If I’m getting a timer switch I may as well get a smart one’?
Belkin WeMo plugs – they can be turned on/off from a smartphone or set to follow programmable rules e.g. turn on / off at sunrise.
Also can be controlled by IFTT.
Personally I use Energenie wireless plugs that are controlled by a Pi either on a schedule, python program (i.e. I use a Pi as a heating thermostat to switch a number of electric heaters on/off) or remotely.