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    Re: Sexagesimal (was Newbie - Variation..)
    From: John Simmonds
    Date: 2002 Feb 20, 16:36 +1000

    Actually .. in military 24 hour time format ... midnight does not exist for
    exactly that reason, what day is it
    Time jumps from 235959 to 000001
    cheers ,
    John
    
    At 15:20 19/02/2002 -0400, Trevor Kenchington wrote:
    >Lu,
    >
    > > Hey, while we're at it, why don't we debate 0000 vs 2400?
    >
    >That's a matter of convention. Subject to correction by the
    >better-informed, I think the convention is 0000.
    >
    > > And, for a more esoteric question, does midnight belong to the earlier or
    > > later of the days it separates?
    >
    >Midnight is instantaneous and so an infinitely-thin line in time,
    >separating the two days but belonging to neither -- or so it would seem
    >to me. However, if you designate it 0000, then it must be 0000 of the
    >following day. If it were otherwise, 0000 would occur 23 hours and 59
    >minutes after 0001 of the same calendar day, which wouldn't make any sense.
    >
    > > But, wait, there's more!  Is noon 12AM or 12PM?  What about midnight?
    >
    >Noon cannot be "ante-meridien" nor "post-meridien" since it is
    >"meridien" itself. (Hope I have the Latin spelling right. High school
    >was very long ago!) Hence it must be "12 noon", not "12am" nor "12pm".
    >But if you really want to give it one designation or the other, it would
    >have to be "12am" since it follows one minute after 11.59am.
    >
    > > All but the first are very important to me in programming my VCR when I
    > > want to record a program starting at midnight.
    >
    >Well for _that_ you don't need the correct definitions, just whatever
    >mixed up ones the software designers used! As with entering deviation in
    >some brands of GPS, you just need to know enough to be able to work out
    >the answer you want and then experiment until you can get the equipment
    >to give you the same result.
    >
    > > I just program the damn
    > > thing to start at 12:01 AM, on that there is at least universal agreement
    > > as to time and day. ;-)
    >
    >I set mine to 2345 and so allow for errors in clock settings -- whether
    >in my VCR or the TV station's machinery. It's not elegant but it works
    >for me.
    >
    >
    >Trevor Kenchington
    >
    >
    >--
    >Trevor J. Kenchington PhD                         Gadus{at}iStar.ca
    >Gadus Associates,                                 Office(902) 889-9250
    >R.R.#1, Musquodoboit Harbour,                     Fax   (902) 889-9251
    >Nova Scotia  B0J 2L0, CANADA                      Home  (902) 889-3555
    >
    >                     Science Serving the Fisheries
    >                      http://home.istar.ca/~gadus
    
    "Live every day like it may be your last .... because one day it will be"
    
    
    

       
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