Do we need a timezone on the moon?

On April 2nd, The Office of Science and Technology in the White House asked NASA to establish a unified standard time for the moon and other celestial bodies by the end of 2026. This is partly because it is going to get busy on the moon with Artemis and other lunar programmes from China and other space agencies. The shared clock will help coordinate missions and perhaps stop future disasters. NASA is working with the Departments of Commerce, Defense, State and Transportation to create and implement the lunar time zone but will need to consult the 36 nations that have signed the Artemis Accords, an agreement that agrees and legislates on countries' activities in space and on the moon. However, there is a chance that this proposal may not catch on with China and Russia, the two main U.S. rivals in space, who have not signed the agreement.

Moon time is planned to be 57.8 microseconds (One-millionth of a second) different from time on Earth and it has not been confirmed whether there will be different time zones, but NASA has indicated that it wants ULT (universal lunar time) to be scaleable to other celestial bodies, although it will only be used in cislunar space. Like Earth's UTC is coordinated based on 450 atomic clocks in 85 laboratories worldwide, The Office of Science and Technology has suggested that 'an ensemble of clocks' could be set up on the moon to calibrate the LTC.

Timekeeping is crucial in space missions which require precision in communication and navigation so having a time zone separate from those on Earth will allow for easier synchronisation in international collaboration missions. It also avoids a problem

But the time discrepancy becomes crucial in space missions, which require perfect precision for communication, tracking and navigation.

LTC is also needed for secure data transfers between spacecraft and for matched communication among Earth, lunar satellites, bases and astronauts, Reuters reported.

And because future missions will be multinational, all participants will need to be synchronized, no matter what timezone they are from. The use of LTC also prevents a very common occurring risk, which is nations using their own measurement of time, which poses obvious risks if, for example, a spacecraft was docking to something like the ISS which uses a different time. NASA uses mission elapsed time (from liftoff) to organise its missions, but the ISS uses GMT.