https://en.wikipedia.org/wiki/Timekeeping_on_the_Moon#Coordinated_Lunar_Time#Coordinated_Lunar_Time

> Under the Artemis program, and supported by the Commercial Lunar Payload Services missions, astronauts and a proposed scientific moonbase are envisioned to take place on and around the lunar surface from the 2020s onwards. The proposed standard would therefore solve a timekeeping issue. According to OSTP Chief Arati Prabhakar, time would "<b>appear to lose on average 58.7 microseconds per Earth-day and come with other periodic variations that would further drift Moon time from Earth time</b>".