Dublin Airport is moving a project to resurface its main runway forward by two hours each day.
The runway, which is 28 years old, also needs an upgrade of its ground lighting system and full replacement of all cabling and ducting.
The 18-month project started in November 2016, and is set be finished by next April.
Construction work had been taking place between 11.00pm and 5.00am each night up to the end of October.
But due to low visibility, heavy rain and storms the project start time has been brought forward to 9.00pm to meet the April 2018 deadline.
Contractors have eight hours every night to work on a 100 metre section of the runway.
When all the equipment and contractors have left the site, the runway is put through a safety inspection to ensure it's ready for early morning flights.
During the construction work, the airport's oldest runway - known as R16/34 - is being used instead.
Watch how it's all done below: