Chinese scientists have developed LTE440, the first dedicated lunar timekeeping software that aims to synchronize time between Earth and Moon. Led by the Purple Mountain Observatory, this system addresses the tiny but critical time difference caused by the weaker gravity of the Moon, a factor that can cause serious errors in communication and navigation of space missions.
The LTE440 (Lunar Time Ephemeris) uses advanced calculations to account for orbital motion and relativity, providing accuracy down to the nanosecond level over very long periods of time. Instead of manual computation, the software offers a one-step conversion system that engineers and space mission planners can easily use for safer and more accurate operations on the Moon.
As the long-term human and robotic presence on the Moon expands, the establishment of standard Moon Time—similar to the role of GPS on Earth—is becoming a foundation. LTE440 is considered a critical infrastructure for future lunar navigation, habitats, and space networks, marking a significant step from simple exploration to sustained, organized life in space.
