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A comment on Chevrolet to offer unlimited data plan with cars. Parent comment

Re:Chevrolet to offer unlimited data plan with cars by chiph on Thursday March 02, 2017 @04:48PM (#13778554)
Only the GPS time value has never had any leap seconds applied to it. So it's almost 20 seconds ahead of UTC. Which is probably "good enough" for a clock in a car.
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Re:Chevrolet to offer unlimited data plan with cars by gizmo686 on Thursday March 02, 2017 @05:30PM (#13778892)
GPS includes the offset between GPS time and UTC so that receivers can convert to UTC if they want to.

This offset is limited to 255 seconds though.

https://en.wikipedia.org/wiki/Global_Positioning_System#Leap...

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Re:Chevrolet to offer unlimited data plan with cars by ProblemFactory on Thursday March 02, 2017 @06:35PM (#13779402)
> This offset is limited to 255 seconds though.

Given that leap seconds have been added at a rate of approximately 1 every 1.6 years, we are still good for another 376 years.

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Re:Chevrolet to offer unlimited data plan with cars by simcop2387 on Thursday March 02, 2017 @08:10PM (#13779947)
Don't forget that they can be negative leap seconds too! It hasn't happened yet but it is expected.
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Re:Chevrolet to offer unlimited data plan with cars by Stratoscope on Thursday March 02, 2017 @05:24PM (#13778845)
It seems unlikely that the GPS receiver is hardwired directly to the clock display in the dashboard. There's probably some code running somewhere in the middle. So it should be easy enough to make the leap second correction there, and to keep it up to date through routine updates.
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