On 2/13/20 5:46 AM, Richard Langley wrote:
"(i) Within 180 days of the date of this order, the Secretary of Commerce shall
make available a GNSS-independent source of Coordinated Universal Time, to support the
needs of critical infrastructure owners and operators, for the public and private sectors
to access."
https://www.whitehouse.gov/presidential-actions/executive-order-strengthening-national-resilience-responsible-use-positioning-navigation-timing-services/
Interesting that this has a 180 day "make available" but the other stuff
in the EO (PNT profiles, etc) is years down the road.
As a practical matter, this has already been done. WWV, WWVH, and WWVB
all provide coordinated universal time without GNSS. The EO says
nothing about accuracy, precision or availability. In fact, the dial up
service
(https://www.nist.gov/pml/time-and-frequency-division/radio-stations/wwv/telephone-time-day-service)
would also work.
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