Welcome to the NavList Message Boards.


A Community Devoted to the Preservation and Practice of Celestial Navigation and Other Methods of Traditional Wayfinding

Compose Your Message

Add Images & Files
    Re: Cell phone time, etc
    From: Frank Reed CT
    Date: 2005 Apr 23, 02:55 EDT
    On April 10 Dan Allen wrote:
    "I have always wondered why Garmin and others did not put a
    little more effort into displaying the right local time automatically:
    a GPS knows where you are, add a map of the time zone boundaries and
    you can do it automatically, but nobody does! "
    Another answer to this occurred to me. The time zones are not mapped at anywhere near the level of accuracy of GPS. In some places, even in the US, the time zone boundaries follow political borders that are not reliably defined even at a level of five or ten arcseconds in lat/lon. I suppose they could put in a feature that says "time zone changing somewhere around here" maybe displaying two zone times within a few hundred yards of the boundary.
    I wonder if cell phone companies actively seek locations for their towers so that their cells do not straddle time zone boundaries...
    42.0N 87.7W, or 41.4N 72.1W.
    Browse Files

    Drop Files


    What is NavList?

    Join NavList

    (please, no nicknames or handles)
    Do you want to receive all group messages by email?
    Yes No

    You can also join by posting. Your first on-topic post automatically makes you a member.

    Posting Code

    Enter the email address associated with your NavList messages. Your posting code will be emailed to you immediately.

    Email Settings

    Posting Code:

    Custom Index

    Start date: (yyyymm dd)
    End date: (yyyymm dd)

    Visit this site
    Visit this site
    Visit this site
    Visit this site
    Visit this site
    Visit this site