From the article...
But Nasa is not the only one trying to make lunar time a reality. The European Space Agency has also been developing a new time system for a while. There will need to be agreement between countries and a centralised co-ordinating body - currently this is done by the International Bureau of Weights and Measures for time on Earth.
At the moment on the International Space Station, Coordinated Universal Time is used because it remains low in orbit. Another element that countries will have to agree on is where the new time frame begins from and to where it extends.
The US wants LTC to be ready by 2026 in time for its manned mission to the Moon.
Artemis-3 will be the first mission to return to the Moon's surface since Apollo 17 in 1972. It is set to land at the lunar south pole, which is thought to hold vast stores of water-ice in craters that never see sunlight.
Locating and directing this mission requires extreme precision down to the nanosecond, errors in navigation which could risk spacecraft entering the wrong orbits.
But Artemis-3 is also one of numerous planned national missions to the Moon as well as private endeavours. If time is not co-ordinated between them it could lead to challenges in sending data and communication between spacecraft, satellites and Earth.