I see how to configure the whole-house fan to run for any contiguous period each day, as long as that period doesn't span midnight. Electricity is most expensive for me from 5PM-9PM, so I'd like to run the fan all the time except during those four hours each day. I tried setting the start time to 9PM and the end time to 5PM via the Nest webpage, but that results in the fan running all the time. That seems like a bug.
