I'd use 2 seconds.
Go into Rule Machine and click create new rule, then select create new TRIGGER. Do not pick a RULE or a TRIGGERED RULE. You simply want a TRIGGER. In the Trigger, select one of your new Virtual Switch devices and select ON as the value you want to act upon. Then fill in the Action for adjusting the thermostat setpoint. This very last step is not something I have done recently, so it might take some tinkering.
