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: Leap second in December
    From: Don Seltzer
    Date: 2016 Jul 9, 19:40 -0400

    On Sat, Jul 9, 2016 at 7:28 PM, Herbert Prinz <NoReply_HerbertPrinz@fer3.com> wrote:


    I would not have noticed it, but now that you mention it, I don't think one can add what is already there. So, the additional second can only be inserted AFTER the 60th second, which is at 00:00:00.

    But then, I already don't understand what it means to "add a second to a clock". This metaphor suggests that a clock is something like an old fashioned gas meter or telephone that I have to feed a coin every second to keep it happy. But what if my clock is a dripping water faucet, where a drop is coming out every seond? I have to add nothing. On the contrary, I get one more drop out.

    I have seen a more explanatory announcement that specifies

     A positive leap second will be introduced at the end of December 2016.
     The sequence of dates of the UTC second markers will be:

                              2016 December 31, 23h 59m 59s
                              2016 December 31, 23h 59m 60s
                              2017 January   1,  0h  0m  0s

    Don Seltzer
    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