Customer Self-Service Portal

Any way to change check frequency or notification profile based on business hours?

I have a ping monitor for our business's primary Internet connection. The check frequency is 1 minute and the notification is immediately, because I need to know RIGHT NOW if that connection goes down during business hours. But outside of normal business hours, it's not as critical. I'm tired of getting notifications when the connection goes down for 3 minutes at 2am on a Sunday. Is there some way to have a notification change notification profile or check frequency based on the time or some other factor? Or is there a way to limit a monitor to only run during certain hours of the day?