Delivering great software is not a race to the finish line (by finish line I mean deployment to production). Instead mark your acceptable builds as Gold Builds and when the business is ready to have it deployed, deploy the latest gold build.
There will always be a push to get more done with less. Using gold builds will alleviate the stress of trying to hit a deadline and having the go no go call the day before go live. Another very important side effect of managing builds and deployment this way is the number of bugs released into production goes down. Most likely this is due to the decrease in stress and increase in time to make sure the pinned gold build is truly the one to go live.
Sounds easy but it is hard because setting the expectations with the business, sales, marketing even IT can be hard if the expectations are left uncontrolled.