Reply to post: Re: Interesting

Register Lecture: Can portable atomic clocks end UK dependence on GNSS?

A.P. Veening Silver badge

Re: Interesting

But they don't get better than microsecond accuracy and mostly do with millisecond accuracy. And some older systems still use whole seconds as most accurate level. And yes, I used to work as a programmer for a large, international bank and one of my jobs was to improve accuracy of timestamps to the microsecond level.

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