On 2018-07-19 04:44 AM, Hal Murray wrote:
As a IT professional, and author of date/time libraries, I cannot stress
enough how much a standard is needed here. We are going to have both UTC
(with leap seconds) and systems that smear ("UT-Smear") and there is
currently no agreed way to define the latter or move from one to the other. I
strongly suspect that Microsoft is going to have to define a smear in order
to meet old APIs, but this really should be something well defined by a
standard, not invented by a company.
I think there is a semi-standard emerging for NTP.
There are several big companies running smearing servers. I think they have
all agreed to use the same parameters. I think that's linear over 24 hours,
12 before the leap and 12 after. I'll dig deeper if it matters.
I think it does matter. I, for one, would be interested in credible
explanation of the "smears", and, if these have been coordinated, by
whom, and how.
-Brooks
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