The trouble with that is the deployment is expected to be simple and under your control. The real fun bit comes when users get at it. By doing the deployment a

The trouble with that is the deployment is expected to be simple and under your control. The real fun bit comes when users get at it. By doing the deployment at night you find out if it worked at 9:00am the next morning when 1000s of employees connect try and do some work. If there are any issues you are then in deep xxxx By doing deployment in the afternoon, people are offline for the hour or so it takes to deploy but then you have all night to fix any issues.