Different Alerts on a Schedule

I would love the option to have my alert sounds different at different times. I would like to be able to set a loud siren noise between the hours of 12am and 7am for motion detected in my driveway. Having the siren on my driveway flood light is great, but it serves absolutely no purpose if I sleep through the notification at night when the activity is happening. I also don't want a loud alert going off all day when it's just regular motion. If I could set alert tones by schedule that would be wonderful.