🚀 go-pugleaf

In article <BxsAGt.4CG@news.cso.uiuc.edu> macg9505@uxa.cso.uiuc.edu writes:

>
>      
>      This is probably too simply for you C/C++ gurus out there, but how does
>one set the global variables for timezone and day light savings in BC++?
>The following doesn't work:
..
>No matter what value is entered for timezone, the gmt value doesn't change. 
>Since the gmt is a function of localtime, timezone, and daylight, it should
>change. If the above code (with appropriate #includes) is run, the gmt
>computed is the same regardless of the value timezone is set to, or the value
>of daylight.  Using the tzset alternative has little value as well:
..
>I've yet to get the gmt, or any other time function to respond differently by
>any setting of the "TZ" variable, save for the middle number.  So if someone
>could please explain, either what I'm doing wrong,( I'd like to have the user
>enter the difference between gmt and local time, and whether daylight savings
>is in effect, and set the appropriate values myself), or confirm something is
>amiss, I would be greatly indebted.  I wouldn't even complain if Borland
>responded, since I've already spent 90 min. on hold over the last week and
>have given up on tech support. Post or email to macg9505@uxa.cso.uiuc.edu 

The Borland time functions are a disaster. The USA daylight savings dates
are hard coded into the library and the daylight saving part of tz is ignored.

If you live in an area that uses dates *other than* USA dates for the start
and end of daylight savings you are up the proverbial creek. 

Also if you do not specify a timezone the library assumes you are set to
GMT and deducts 6 hours, If you specify tz=GMT it makes the same (-6 hours)
assumption. tz=GMT0 is required and treat the same as tz=GMT0BST if the
date specifies a date when daylight savings are not in effect in USA.

At least Microsoft get this one correct.

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Malcolm S. Muir                              EMAIL: malcolm@muir.demon.co.uk
Sunderland                                   CIX: mmuir BIX: mmuir
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