1. Traceability to UTC: Lunar Time is analogous to Terrestrial Time on Earth (TAI+ 32.184 seconds). Similar to Terrestrial Time, Lunar Time may be set through an ensemble of clocks on the moon. This time standard, i.e., LTC may directly employ or distribute the UTC offsets required to maintain both local time and UTC time within tolerance limits.
  2. Scalability beyond the Earth-Moon system: Conversion of LTC to UTC for operations involving interactions with Earth will be possible by using the above approach to set the LTC. This approach is also extensible to space environments beyond the Earth-Moon system (for example, for Mars).
  3. Accuracy for precision navigation and science: The LTC will give users in cislunar space a reference time standard near the gravitational environment in which they operate. Space assets can synchronise with each other with precision for navigation.
  4. Resilience to loss of contact with Earth: The reference time – LTC – must survive independently when contact to Earth is lost.