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Re: Emacs Calc: converting FROM Unix Time, unrecognized time zone

From: Alan
Subject: Re: Emacs Calc: converting FROM Unix Time, unrecognized time zone
Date: 4 May 2007 22:38:34 -0700
User-agent: G2/1.0

On May 5, 1:31 am, Jay Belanger <address@hidden> wrote:
> 't P' (`calc-date-part') will get it for you.
> Enter the date with algebraic notation:
> <2007-05-05 14:30>
> then, to get the hours, either `C-u 4 t P' or
> `t P', and then type `4' at the prompt (which will also tell you which
> number to type to get the date parts: `1' for year,..., `4' for hours).

This is very helpful.  It gives me HH:mm.  Is it possible to extract
HH.xx (hours and decimals) directly?

> It's not documented as an Emacs lisp variable (although I guess it
> should be), but it is documented as a Calc variable.  It is in the
> variable index of the Calc manual under "TimeZone".  As a Calc
> variable, it is "TimeZone", but to deal with it directly from elisp,
> you need to use `var-TimeZone'.  (In general, the Calc variable `foo'
> corresponds to the lisp variable `var-foo'.)

As far as I can find in the calc manual, I am told to set the
variable, but I have not been able to find out what is the format of
the variable?

For now I set GMT-10 by "s T', like this:

If I were to try to set ChST, the time zone more generally used on my
Island, would I have to edit also "calc-forms.el?  And what would I
need to enter?  There is no ChDT.

Your replies have been of inestimable help.  Thank you,


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