Hi Stephen,

On 2016-12-28 02:02 PM, Stephen Scott wrote:

Hello Brooks;


[ As discussed on the list many times, POSIX's use of the term "UTC" in describing "the epoch" as "1970-01-01 00:00:00 UTC" is troublesome because it lies before 1972-01-01T00:00:00 (UTC) in the "rubber band era", the development period of TAI and UTC when the TAI-UTC offset was not integral seconds. The name of the timescale and the TAI-UTC values during that span is somewhat controversial. In any event, as a practical matter, the origin of POSIX "the epoch" is usually taken to mean 63072000 seconds
That should be 63072010 seconds (730 days x 86400 plus 10 seconds)

I don't think so. This is POSIX so-called "1970-01-01 00:00:00 UTC" not 1588/PTP. 1588/PTP epoch is 10s earlier.

-Brooks

-Stephen
before 1972-01-01 00:00:10 (TAI) = 1972-01-01T00:00:00 (UTC) ].


-Brooks

Tony.



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