njh@root44.UUCP (Nigel Horne) (04/03/85)
Not only 4.2BSD, but also System V. Ho hum, still the week soon went by.
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Nigel Horne <njh@root44.UUCP>
Root Computers Ltd.
{deccra,edai,glasgow,hirst1,ist,kcl-cs,qmc-cs,rlvd,pmllab,stc-a,ubu,
ukc,unisoft}!root44!rootcl!njhdk@sysdes.UUCP (04/02/86)
The current version (USG at least) of localtime in UNIX allows you to set whether a time zome has Daylight Saving Time, but no obvious method of changing the days on which DST takes effect. The UK (please correct me if I err) seems to resort to Parliamentary announcements (or other black arts) to set DST, so hard-wiring it as now is not on. I've seen versions on some U*X systems which append numbers to the TZ environment variable, and it wouldn't be hard to make our system do the same. However, it would be nice to know whether anyone knows of a fairly *standard* fix, so that there won't be a proliferation of slightly different and nonportable versions.
neil@uk.ac.man.cs.ux (Neil Todd) (04/02/86)
In article <234@sysdes.UUCP> dk@sysdes.UUCP writes: . . > >The UK (please correct me if I err) seems to resort to Parliamentary >announcements (or other black arts) to set DST, so hard-wiring >it as now is not on. > Stand corrected, I've had the following ctime.c in various machines for some time now. /* * The European tables ... based on hearsay * Believed correct for: * WE: Great Britain(WRONG use gbdaytab), Portugal? * ME: Belgium, Luxembourg, Netherlands, Denmark, Norway, * Austria, Poland, Czechoslovakia, Sweden, Switzerland, * DDR, DBR, France, Spain, Hungary, Italy, Jugoslavia * Finland (EE timezone, but ME dst rules) * Eastern European dst is unknown, we'll make it ME until someone speaks up. * EE: Bulgaria, Greece, Rumania, Turkey, Western Russia * * Ireland is unpredictable. (Years when Easter Sunday just happens ...) * Years before 1983 are suspect. */ /* NCT addition */ static struct dstab gbdaytab[] = { 0, 91, 303, }; What DOES really bug me is that only Britain and Portugal use what Unix calls WET (Western European Time). Why, oh why can't they just let us use GMT and BST (British Summer Time). I'm pretty sure that there are more sites in Britain than in Portugal. I asked UCB but was met with a deafening silence.