119-hr-2313119th Congress

Celestial Time Standardization Act

Sponsored By: Representative McClellan, Jennifer L. [D-VA-4]

In Committee

Summary

Creates a U.S.-led plan to establish a coordinated lunar time standard so clocks work the same way on the Moon and in deep space, making navigation, science, and systems interoperability more reliable.

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  • NASA would lead the study and definition of a coordinated lunar time and develop a strategy to implement it, working with the Office of Science and Technology Policy and other federal agencies.
  • The agency would be required to coordinate with commercial companies, academic groups, and international standards bodies to help systems from different partners work together.
  • The strategy must aim for traceability to Coordinated Universal Time, accuracy for precision navigation and science, resilience if contact with Earth is lost, and scalability beyond the Earth-Moon system.
  • NASA would brief the relevant congressional committees within two years on plans, timelines, and resources needed to implement the coordinated lunar time.

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Bill Overview

Analyzed Economic Effects

1 provisions identified: 1 benefits, 0 costs, 0 mixed.

Plan to set standard Moon time

NASA would lead a plan to create one standard time for the Moon. The plan would support navigation, science, and safe operations. NASA would work with Commerce, Defense, State, and Transportation. It would also consult companies, universities, and international partners and standards groups. The strategy would aim to link to Coordinated Universal Time, stay very accurate, work if Earth contact is lost, and scale beyond the Moon. NASA would brief two Congressional committees within two years after enactment on plans, timelines, and needed resources.

Sponsors & CoSponsors

Sponsor

McClellan, Jennifer L. [D-VA-4]

VA • D

Cosponsors

  • Rep. Begich, Nicholas J. [R-AK-At Large]

    AK • R

    Sponsored 5/13/2025

Roll Call Votes

No roll call votes available for this bill.

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