[HN Gopher] UT1 NTP Time Dissemination
       ___________________________________________________________________
        
       UT1 NTP Time Dissemination
        
       Author : wglb
       Score  : 29 points
       Date   : 2022-01-14 02:32 UTC (20 hours ago)
        
 (HTM) web link (www.nist.gov)
 (TXT) w3m dump (www.nist.gov)
        
       | contravariant wrote:
       | How bad an idea would it be to just use UT1 everywhere and forget
       | about leap seconds?
       | 
       | It'd probably break something but I can't for the life of me
       | figure out what.
        
         | LeoPanthera wrote:
         | It would be quite bad.
         | 
         | See this page: https://www.ucolick.org/~sla/leapsecs/dutc.html
         | 
         | And scroll down to "Implementing the plan outlined at Torino",
         | taking note of the "Notable event" column.
         | 
         | Edit: I think I misunderstood your question. This table shows
         | the results of what would happen if we just stopped adding leap
         | seconds.
        
         | phaker wrote:
         | TAI is the 'UTC without leap seconds'.
         | 
         | UT1 is an evolution of solar time, and wobbles when Earth does
         | because it's using the Earth and Sun (and other bodies) as a
         | clock.
         | 
         | UTC is TAI with leap seconds added when UT1 drifts too far
         | away.
        
           | LeoPanthera wrote:
           | "UT1R" is a smoothed version of UT1 with the wobble removed.
        
           | jws wrote:
           | I wrote an OS that used TAI as it's time. All in all I was
           | pleased with the outcome. UTC conversion happened at parsing
           | and formatting, but those are relatively uncommon compared to
           | comparison and interval addition so it works well performance
           | wise.
        
       | toast0 wrote:
       | > The reply will have no special indication that the transmitted
       | time is UT1 and not UTC.
       | 
       | And this is how really terrible time situations occur.
        
         | amluto wrote:
         | Like when Google's smeared leap second leaked into the general
         | NTP pool?
        
           | encoderer wrote:
           | Wait what?
        
             | snypher wrote:
             | https://developers.google.com/time/smear
        
       ___________________________________________________________________
       (page generated 2022-01-14 23:01 UTC)