> > Does anyone out there know how timezones work, in detail?
> > 
> > more elusive.  Is everyone's local time always an integral number of hours
> > offset from Greenwich, or can it be more complicated?

	[various responces indicating 1/2 hour & 1/4 hour offsets]

Worse still... There are zones whose legal definition of time was solar,
although, I beleive there are no such current zones. To do timezones
right, you need to handle historical changes.

-- Mike Klein