Tom Porterfield

pbx wrote:
> Vista seems confused about what GMT is:
>
> my date/time is 3/27/2007 5:14PM in GMT -8 Pacific Time (US & Canada)
>
> if I set the additional clock to both available GMTs:
>
> GMT (Greenwich Mean Time: Dublin, Edinburgh, Lisbon, London)
> and
> GMT (Casablanca, Monrovia, Reykjavik)
>
> the first one (london) says its: 3/28/2007 1:14AM
>
> the second one (casablanca) says its: 3/28/2007 12:14AM
>
> the second one is right!

Actually they are both right but you have to understand what you are seeing.
Pacific Time (GMT-8) is currently in daylight savings time meaning you are
actually currently GMT-7. True GMT (Greenwich Mean Time) does not have a
concept of daylight savings time so GMT-8 is always GMT-8 even if when
adjusted it is GMT-7. Casablanca is not true GMT and while Casablanca does
not change its clock for daylight savings time, any conversion from local
time where DST is in effect does need to be accounted for and Windows does
this automacitally for you. To see the correct time for true Greenwich Mean
Time you need to set that as your timezone AND disable the automatic
adjustment for daylight savings time.
--
Tom Porterfield