Don't confuse timezones with timezone offsets. They are different concepts.
On Friday, 5 August 2016, Jon Zeppieri <[email protected]> wrote: > > > On Fri, Aug 5, 2016 at 5:58 PM, Alexander Jones <[email protected] > <javascript:_e(%7B%7D,'cvml','[email protected]');>> wrote: > >> What I meant by Date+Time components was actually { year, month, day, >> hours, minutes, seconds, offset }. I think it makes sense to formalise this >> as an expression of a time point (aka Date) *in a particular timezone*. For >> example this can be used to decide e.g. "are these two time points in the >> same month in this specific timezone", where that month may be e.g. 31 days >> + 1 hour. It could also be formatted for display. >> >> Conflating Date projections into a timezone, with formatting, is a bit of >> a conceptual error IMO. Convenient, but incorrect, as per Single >> Responsibility Principle. >> >> Alex >> >> > UTC offsets are terrible representations of time zones, because they don't > acknowledge that many actual local timelines are discontinuous. > > When you don't need time zones, it's best to avoid them (and UTC offsets) > altogether, but when you really need them, UTC offsets just aren't enough. > > > >
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