> 
> The timezones start with Zulu (0) in Greenwich and go west +1h til +12 
> from there on it is counted viceversa from -12 down to Zulu, so there are 25
> timezone (Mike and Yankee are used for the geographically dateborder).

Dont forget the pacific islands that are 13h east of Greenwich.

Not to mention the odd area that is on a 15minute boundary :-)

Oh, and summertime leaps in the other direction south of the equater.

The problem you might actually have is that the bios clock
has to get set to GMT. (Or you have to build a kernel that
knows the offset).

Interestingly the definition of the register set for the clock chip
used on PCs (and other places) has a bit allocated to 'summertime'
Windows will change the bios clock for summer/winter without setting
this bit :-(

	David

-- 
David Laight: david@l8s.co.uk