Seasonal time changes for UBL TC calls

Hello UBL TC,

Daylight Saving Time begins this Sunday, 8 March, in the U.S. and
Canada.  In keeping with established practice in the UBL TC, our
meeting times will change as follows beginning next week:

  - The Pacific call will stay at 00:30-02:30 UTC/GMT every
    Tuesday, but due to the change to daylight time, the clock time
    for callers in the U.S. will appear to shift forward one hour
    (to start at 17:30 Monday in San Francisco and 20:30 Monday in
    New York).  The starting local time will remain at 08:30
    Tuesday in Hong Kong, Singapore, and Beijing and at 09:30
    Tuesday in Seoul, Tokyo, and Perth.

  - The Atlantic call, on the other hand, will move back one hour
    to run from 15:00-17:00 UTC/GMT instead of 16:00-18:00 UTC/GMT
    so that the local (now daylight) times in North America appear
    to stay the same as they were during the winter (08:00-10:00 in
    San Francisco, 11:00-13:00 in New York).  Times in most of
    Europe WILL NOT necessarily appear to stay the same until
    European locations make their own change to daylight time 29
    March.  For a little while, therefore, Atlantic call times for
    most European participants will begin an hour earlier by local
    clocks.  After European locations switch to daylight time, the
    calls will again appear to take place at the same time they did
    during winter.  For an overview of time changes this season,
    see

       http://www.timeanddate.com/time/dst2009.html

    and

       http://www.worldtimezone.com/daylight.html

It's always best to check the Time and Date URL at the top of
each agenda to make sure of the time, but for the next few weeks,
it's going to be essential.

Jon