What's The Time Up There? Nasa Aims To Set Lunar Clock Ticking
The Guardian|April 04, 2024
The White House wants Nasa to figure out how to tell time on the moon.
Diana Ramirez-Simon
What's The Time Up There? Nasa Aims To Set Lunar Clock Ticking

A memo sent from the head of the US Office of Science and Technology Policy (OSTP) has asked Nasa to work with other US agencies and international agencies to establish a moon-centric time reference system.

Nasa has until the end of 2026 to set up what is being called Coordinated Lunar Time (LTC).

It is not quite a time zone like those on Earth, but an entire frame of time reference for the moon. Because there is less gravity on the moon, time there moves a tad more quickly - by 58.7 microseconds every day compared with on Earth. Among other things, LTC would provide a timekeeping benchmark for lunar spacecraft and satellites that require extreme precision for their missions.

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