[Datetime-SIG] Computing .dst() as a timedelta

Chris Angelico rosuav at gmail.com
Wed Sep 23 02:57:05 CEST 2015

On Wed, Sep 23, 2015 at 10:12 AM, Alexander Belopolsky
<alexander.belopolsky at gmail.com> wrote:
> It is not as well-known as you might think.  I, for one, don't even know how
> to translate it in my native Russian.  I bet people in Russia who know what
> Moscow time is outnumber those who know what UTC is at least 100 to 1.  I
> bet you will get a similar ratio in California between UTC and say Eastern
> Standard Time.

Of course. Local time is always better known than UTC. But any given
local time is only going to be known in its own locality. I would bet
that the people in Russia who know Eastern Standard Time, or the
people in California who know Moscow time, would be quite low.

> Let's have a show of hands here: how many people know what "C" stands for in
> UTC and what "M" stands in GMT and what is the significance of these
> letters?

I know, on both counts, because I'm a wonk. But those specifics are
part of what I would elide, along with leap seconds and relativity,
when explaining a scheduling system. (Let's face it - nobody's going
to schedule a meeting to such accuracy that any of it will matter.)
Time is a lot messier than most people need to care about.


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