At one place I worked I put in a 4pm deadline on deploys, because I was tired of the devs seeing the end of the day as their deadline, tossing it over the fence

At one place I worked I put in a 4pm deadline on deploys, because I was tired of the devs seeing the end of the day as their deadline, tossing it over the fence to me, and then sodding off at 5. Invariably, it led to me trying to hunt someone down at a time when everyone was commuting home or similar. 4pm was enough time to do the deploy determine if something went wrong, and get the relevant dev started on the fix.