XPost: alt.comp.os.windows-10   
   From: not.email@all.invalid   
      
   On Fri, 23 Jan 2026 19:08:30 -0500, Paul wrote:   
      
   [snip]   
      
   > There is the frequency adjustment of the reference oscillator,   
   > to avoid first order drift. On typical time pieces, this runs at   
   > 32768.0000 Hz (above human hearing).   
      
   I remember about those crystals. You really need 1Hz but a 1Hz crystal   
   would be much too big. 32768 is exactly 2^15, so it's easy for an   
   electronic circuit to get 1Hz from that.   
      
   > A watchmaker may have a suitable   
   > instrument while working to correct the value.   
   > A trimmer capacitor is inside the watch, to make tweaks.   
   > The RTC in a personal computer is missing this adjustment.   
   >   
   > And there is the purposeful register offset, to arrive at destinations   
   > ahead of an appointment. The register could be adjusted ahead, behind,   
   > or nominal.   
   >   
   >      "I set my watch ahead, so I will always be on time for   
   >      appointments"   
   >   
   >       [well, not absolutely always, depends on paragraph 1]   
      
   I always set it to the right time, and leave early for appointments.   
   Setting it wrong could be confusing.   
      
   > Good time pieces are temperature compensated, as the ambient temperature   
   > changes, the tempco of some of the elements are made to cancel, and it   
   > gives the impression the device is temperature invariant (which it is   
   > not). Scientific American used to have articles about this, in the   
   > Amateur Scientist section.   
   > Some cars have had excellent temperature compensated time clock pieces.   
      
   My mother's Volvo had a clock like that. It kept really good time, but was   
   hard to set. She never changed it for DST, just remembered the offset.   
      
   BTW, I've been calling DST "Damn Stupid Time". The nonsense idea that   
   changing clocks could actually give you more time (or more daylight).   
      
   Another clock I've seen was on a TV news show seen all over the country.   
   The clock had only a minute hand, since the hour would be different in   
   different places.   
      
   [snip]   
   --   
   Mark Lloyd   
   http://notstupid.us/   
      
   "Sit down before fact as a little child, be prepared to give up every   
   preconceived notion, follow humbly wherever and to whatever abyss nature   
   leads, or you shall learn nothing." Thomas Henry Huxley   
      
   --- SoupGate-Win32 v1.05   
    * Origin: you cannot sedate... all the things you hate (1:229/2)