[LEAPSECS] leapseconds, converting between GPS time (week, second) and UTC

[Poul-Henning Kamp]

--------
In message <20190116085619.GA23164 at ucolick.org>, Steve Allen writes:
>On Wed 2019-01-16T08:31:19+0000 Poul-Henning Kamp hath writ:
>> In message <20190115205243.GB25854 at ucolick.org>, Steve Allen writes:
>> >That evokes a challenge for all time nuts that I can make based on
>> >reading Bulletin Horaire.
>> >
>> >What is the epoch that was used for TAI?
>>
>> Isn't that the same one Loran-C used ?  1958-01-01 00:00:00 GMT ?
>
>Nope.
>
>The epoch of TAI, and LORAN, and GPS is 1961-01-01T20:00:00 UT2.
>Or maybe 1961-01-00 UT2.
>
>That is when the atomic time scale was set to a specified value.

But the specific value they set was not zero in 1961-01-01T20:00:00 UT2,
they set it so it would have been zero at 1958-01-01 00:00:00 GMT


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