When is the best time to execute a site migration?

On the day when the site historically has its highest traffic to maximize the visibility of the new site
On a weekday between 6PM and 11PM
On a day that will have the least impact on your business revenue, ideally during off-peak hours
It doesn’t matter what day or time you execute a site migration, they will all have the same effect.

The correct answer is:

On a day that will have the least impact on your business revenue, ideally during off-peak hours