> The feature will be flipped after release date is reached.

Don't ever use this. This is a "time bomb". This is a very bad idea. It's basically like scheduling a time for your app to go down when you aren't paying attention.

You have to have a human in the loop. The right way to "schedule a release" is to have a human flip the flag at the appropriate time (preferably, ramp it up to 100% of users gradually) and then stay online for a little while to do an emergency ramp down if/when things go bad (that weren't caught by some automated system in the ramp up).