Stop instances that have been running for a period of time

[zaro0508]

I would like to setup the instance scheduler to run once a day and stop only instances that have been in the running state for more than 1 hr. Any instance that's running for less than 1 hr should be left alone.
Unless I'm missing something, I don't see a way to accomplish this use case. Would be great if the aws-instance-scheduler supported this use case.