[time-nuts] Better leapseconds and PTP support for Windows 10

[Martin Burnicki]

Mark Sims wrote:
> https://arstechnica.com/gadgets/2018/07/windows-10-will-get-better-at-telling-the-time-with-new-leap-second-support/

As pointed out by Steve Allen, there's a blog article directly from
Microsoft here:
https://blogs.technet.microsoft.com/networking/2018/07/18/top10-ws2019-hatime/

These articles mostly mention that some API calls that return the
current time with second resolution may return a second labelled "60".

I wonder what sequence of timestamps is returned by a system call like
GetSystemTimePreciseAsFileTime() called frequently before, after, and
*during* a leap second.

Martin