[comp.sys.att] Daylight Savings Time glitch on 3B2/310

Sm@bhpese.oz.au (Scott Merrilees) (04/09/90)

dritchey@cbnewsc.ATT.COM (don.ritchey) writes:
>Overall solution, get a new release of the OS, since the change is
>present in the libraries used throughout the system.  Unless you have a
>source license (unusual for a 3b2/310), the a new release is about all
>you can hope for.  The other is to call the support number in your
>documentation and ask if they have a fix disk for the changes.  I can't
>help with that now, I used to be a 3b2 system administrator, but am no
>longer working with 3b2's.

I was looking thru my V.3.1.1 Admin Manual last Saturday nite, looking for
stuff I didn't know, & found timezone(4), which describes how to set up the
TZ variable to allow you to specify when the changes take place.  The
examples given were for New Jersey

	TZ=EST5EDT		or, the equivalent complex version for 1986
	TZ="EST5:00:00EDT4:00:00;117/2:00:00,299/2:00:00"

not the "'s because of the ;. The 117 & 299 are julian.

Needless to say, I was very pleased, because Australian DST in no way
resembles the US/Canadian version, and apart from being 6 months different,
varies from state to state, and at the whim of the current state
government.

The book was:
	AT&T 3B2 Computer, UNIX (R) System V Release 3
	System Administrator's Reference Manual
	305-570 Issue 1, (C) 1987 AT&T

Sm
-- 
Scott Merrilees, BHP Rod & Bar Products Division, Newcastle, Australia
INTERNET: Sm@bhpese.oz.au      UUCP: ...!uunet!bhpese.oz.au!Sm

flinton@eagle.wesleyan.edu (04/13/90)

In article <1990Apr9.105204.25971@bhpese.oz.au>, Sm@bhpese.oz.au (Scott 
Merrilees) writes in regard to time-and-timezone setting on 3b2's:
> I was looking thru my V.3.1.1 Admin Manual last Saturday nite, looking for
> stuff I didn't know, & found timezone(4), which describes how to set up the
> TZ variable to allow you to specify when the changes take place.  The
> examples given were for New Jersey
> 
> 	TZ=EST5EDT		or, the equivalent complex version for 1986
> 	TZ="EST5:00:00EDT4:00:00;117/2:00:00,299/2:00:00"
>
	So: Should this probably work on the 7300/UNIX-pc/3b1 too? 
-- Fred		<flinton@eagle.Wesleyan.EDU>
[PS: BTW,
> The book was:
> 	AT&T 3B2 Computer, UNIX (R) System V Release 3
> 	System Administrator's Reference Manual
> 	305-570 Issue 1, (C) 1987 AT&T			]

dave) (04/14/90)

In article <17017@eagle.wesleyan.edu>, flinton@eagle.wesleyan.edu writes:
> > 	TZ=EST5EDT		or, the equivalent complex version for 1986
> > 	TZ="EST5:00:00EDT4:00:00;117/2:00:00,299/2:00:00"
> >
> 	So: Should this probably work on the 7300/UNIX-pc/3b1 too? 

My personal experience has proved that the UNIX-pc chokes on the complex
TZ variable.  The simple TZ will work if you patch your system with the
program that Leni reposted.

DAS
-- 
David Snyder                            Home:  dave@das13.UUCP (das13!dave)
                                        Work:  das@trac2000.UUCP (trac2000!das)

The ideal situation is to have real computing power close at hand - right at    home. Something that dims streetlights and shrinks the picture on the neighbors TV when you crank it up.