A recent announcement focuses on consumer use of an enhanced time signal:
The National Institute of Standards and Technology (NIST) is changing the way it broadcasts time signals that synchronize radio-controlled “atomic” clocks and watches to official U.S. time in ways that will enable new radio-controlled timepieces to be significantly more robust and reliable.
This new time broadcast protocol will not only improve the performance of new radio-controlled clocks and watches, but will encourage the development of new timekeeping products that were not practical with the old broadcast system because of local interference or other limitations. For example, appliances such as refrigerators, microwave ovens and thermostats, as well as traffic light timers and sprinkler systems will be able to take advantage of this new phase modulation broadcast.
Could this be put to use for Amateur Radio? Is it accurate enough for time sync sensitive digital protocols like JT65? Would certainly seem to be potential option for a non-internet time sync.
Usually consumer gear only truly syncs one in 24 hours with a sub-second accuracy over the course of a day.
In theory the WWVB service could achieve 0.20 ms accuracy in sync, but this is fairly loose compared to some other time options.
Even at the end 2/10th second accuracy with twice daily full WWVB Sync JT65-HF should work (see: JT65-HF Source Document )
A WWVB receiver as a USB dongle for a non-internet connected PC?
This would seem to be a good workaround for high latency remote connected PCs, as what happens with many satellite ISP services.
You can read more about NSIT Time services at Link: WWVB Radio Controlled Clocks
Food for thought.