[LEAPSECS] New time scale name

M. Warner Losh imp at bsdimp.com
Fri Aug 13 10:33:47 EDT 2010

In message: <20100813112006.17784.qmail at protonet.co.za>
p at 2038bug.com writes:

: Jonathan E. Hardis writes:


: > On Aug 13, 2010, at 5:00 AM, p at 2038bug.com wrote:

: >> All this talk of GMT/UTC/Legislature makes me ask how the world

: >> currently syncs their time.

: > http://www.bipm.org/en/scientific/tai/tai.html The best method is

: > Two-Way Satellite Time and Frequency Transfer (TWSTFT), utilized by

: > those laboratories with green dots. The others use some method of GPS

: > common-view, such as Single Channel (SC) or Multi-Channel (MC).



: This is not how 100's of millions of computers on the Internet sync

: their time.


: It is merely how a handful of scientific labs sync their time.

GPS time sync is a lot more common than that. Somewhere between tens
and hundreds of thousands of GPS-driven NTP servers are sold every


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