[tz] Dealing with Pre-1970 Data

[Guy Harris]

On Sep 1, 2013, at 3:53 PM, Guy Harris <guy at alum.mit.edu> wrote:

> It certainly doesn't seem that way to *me*.  For the US, for example, 40 Stat. 450:
> 
> 	http://www.webexhibits.org/daylightsaving/usstat.html
> 
> and subsequent laws establishing standardized time in the US are pretty clear.  That statute says, for example:
> 
> 	The standard time of the first zone shall be based on the mean astronomical time of the seventy-fifth degree of longitude west from Greenwich
> 
> and 75 degrees of longitude west of Greenwich, at 1 hour for every 15 degrees, is 75/15 = 5 hours.

That meridian, BTW, does *not* pass through New York City:

	https://maps.google.com/maps?ll=44.983333,-75&q=loc:44.983333,-75&hl=en&t=m&z=5

(New York *state*, yes, but not New York *City*).