Accurate, GNSS-Independent Time, Delivered with Proof
Accurate, GNSS-Independent Time, Delivered with Proof
Mobile networks, power grids, financial exchanges, and data centers all run on time set by GPS. When that signal is jammed or spoofed the clock does not stop. It drifts, or follows the forgery, and nothing in the standard stack can tell you.
Telecom
handoffs and spectrum sharing
Grid
synchrophasor comparison
Finance
trade timestamps
Data center
event ordering
One signal: easy to jam, easy to fake. GPS reaches the ground weaker than the background noise around it, and its civil signal is open for anyone to imitate. A cheap jammer can drown it out, and a spoofer can feed a receiver a convincing false time. What was once a wartime concern is now a routine occurrence.
193%
Rise in reported GPS spoofing incidents, 2024 to 2025
Source: IATA 2025 Safety Report
4.8 µs
How far US official time drifted during a December 2025 power outage, while its time servers kept serving it.
Source: NIST, via NPR, December 2025
$1.6B
Estimated cost to the US economy of a single day without GPS
Source: The Brattle Group, 2024 filing with the FCC
Phase and time sync that holds when GPS at the tower does not.
Independent verification of synchrophasor and protection timing, with records that stand up in review.
Traceable clocks and signed records for trade timestamping and clock-sync rules.
Nanosecond-class time for distributed systems, from one source in the building.
GNSS-independent time for ground segments now, and for spacecraft as the orbital service arrives.
GNSS-independent, traceable time for facilities that must keep running when the signal is denied.
Water, transportation, rail, broadcast, and public safety networks that inherit GPS time.
Executive Order 13905 named dependence on GNSS a national resilience risk. The federal response has been resilience in layers. Lightyear is built to be one of those layers for time: an independent, traceable source with proof.