[TUHS] Date madness

William Cheswick ches at cheswick.com
Mon Dec 18 02:33:27 AEST 2017


No, these weren’t seconds updates (though Plan 9 has a list it applies.) These were
off-by-one-hour problems at each time shift. There would be a sudden flurry of
hard, indignant work, then repeat next time shift.  This was in V10 Unix.

> On 17Dec 2017, at 11:19 AM, Ron Natalie <ron at ronnatalie.com> wrote:
> 
> Year corrections?   Don't recall that but there were a bunch of changes to handle the insertion of leap SECONDS over the years.
> 
> -----Original Message-----
> From: TUHS [mailto:tuhs-bounces at minnie.tuhs.org] On Behalf Of William Cheswick
> Sent: Thursday, December 14, 2017 9:10 AM
> Cc: The Eunuchs Hysterical Society
> Subject: Re: [TUHS] Date madness
> 
> During my first few years in the Unix room (starting in 1988) there was what seemed like a semiannual flurry of leap year corrections made to research unix.  Apparently, there was some aspect that kept misbehaving, with new bugs appearing at the next shift in time.
> 
> I never bothered to investigate the specifics, but it happened over several years.  There are probably some on this list who know more details.
> 
> I don’t recall this being a problem on Plan 9.
> 
> ches
> 
> 



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