Seasonal call time changes

[Jon Bosak <bosak@ibiblio.org>]

Hello UBL TC,

It's time again to shift our Atlantic and Pacific call schedules
around as daylight time begins and ends in various places.  In
keeping with established UBL TC practice, during that season known
as winter in the Northern Hemisphere, the start time for the
Atlantic TC call moves from UTC 15:00 to UTC 16:00, making the
call times in North America and Europe *appear* to stay the same
(11 a.m. in New York), while the start time for the Pacific TC
call stays at UTC 00:30, making the time in North America *appear*
to shift earlier one hour (from 8:30 p.m. to 7:30 p.m. in New
York).

As if that weren't confusing enough, the end of daylight time in
Europe occurs one week earlier than the end of daylight time in
North America.

In sum, our starting call times over the next few weeks look like
this:

    Week of 20 October: no change; that is,

       Pacific call starts at 00:30 UTC 10/21, which is

          20:30 10/20 in New York
          08:30 10/22 in Perth and Beijing
          09:30 10/22 in Tokyo

       Atlantic call starts at 15:00 UTC 10/22, which is

          11:00 10/22 in New York
          16:00 10/22 in London
          17:00 10/22 in Copenhagen

    Week of 27 October:

       Pacific call starts at 00:30 UTC 10/28, which is

          20:30 10/27 in New York
          08:30 10/28 in Beijing
          09:30 10/28 in Perth and Tokyo

       Atlantic call starts at 15:00 UTC 10/29, which is

          11:00 10/29 in New York (usual time)
          15:00 10/29 in London (an hour earlier than usual)
          16:00 10/29 in Copenhagen (an hour earlier than usual)

    Week of 3 November:

       Pacific call starts at 00:30 UTC 11/04, which is

          19:30 11/03 in New York
          08:30 11/04 in Beijing
          09:30 11/04 in Perth and Tokyo

       Atlantic call starts at 16:00 UTC 11/05, which is

          11:00 11/05 in New York
          16:00 11/05 in London
          17:00 11/05 in Copenhagen

It's best to refer to the timeanddate.com URL at the top of each
week's agenda if there's any doubt about the call-in time.

Jon