Rocket Lab is targeting 2.10pm today for its "Business Time" launch from Mahia.
For the past week the launches have been scrubbed because of a mix of weather and technical problems.
A mechanical issue with equipment in the Chatham Islands put paid to the company's plans to launch from Onenui Station last week, and technicians halted the countdown at T-minus 23 minutes.
Weather also postponed a second attempt.
Rocket Lab's Electron rocket, named "It's Business Time", will be the company's second orbital mission, but its first fully commercial mission.