[tz] Potted history of timekeeping from the BBC

[Paul Goyette]

On Mon, 10 Apr 2017, Arthur David Olson wrote:

> And...if Google Maps is correct, the Arizona/New Mexico/Colorado/Utah Four
> Corners Monument is not at the four corners.

Yes, indeed.  Using the Google maps measurement tool shows it to be 
about 12 meters (39 feet) SSE of the actual four-corners

> [Insert here the mandatory reference to convoluted DST in the region.]
>
>    @dashdashado
>
>
> https://www.google.com/maps/place/Four+Corners+Monument/@36.9989687,-109.0452552,20z/data=!4m5!3m4!1s0x873a25d2c9c70acd:0xc9945bd27b66993a!8m2!3d36.9989773!4d-109.0451868


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