When creating a Dissolvable Agent Configuration (DAC) with a start time in the past, the DAC runs immediately instead of waiting until the next day at the requested start time.
The logic used by the DAS software will execute a job when it receives the request with a start time before the current time and date. This is by design in case there is heavy latency between the DAS and the cloud console. In order to prevent the job from running immediately, be sure to set this value to at least 10 minutes after the current time and date.