[LEAPSECS] DNS examples

Steffen Nurpmeso sdaoden at yandex.com
Mon Jan 26 06:25:44 EST 2015


Tony Finch <dot at dotat.at> wrote:
 |Steffen Nurpmeso <sdaoden at yandex.com> wrote:
 |> leap year calculations do not work correctly until the final
 |> introduction of the gregorian date, 1582-10-15.
 |
 |I think that should be "first" - the Julian to Gregorian migration did not
 |complete until the 1900s.

Yes the comment indeed continues -- it is craftmanship rather than
science: doesn't use floating-point and has chattering
documentation :) -- the section finally ends with

  * \note
  * So, DateTime \e cannot be correct at all
  * unless it is used for and in between dates and times
  * for which the used Timezone object offers real rules,
  * and calculates the date (and time) for a geographical location
  * for which the timezone is truly applicable (for the finally resulting date).

It also said

  * Also, the "Europe/Berlin" timezone offers real rules starting at 1893-04-01
  * (at the time of this writing).

Ach, you see -- even more naivity back then!
Today i know that the world didn't even exist before 1972.

--steffen


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