Wow! There is a lot of information there!
Thanks Ken!
John
At 2002-06-03 04:30 PM, Ken Hirsch wrote:
>See http://www.twinsun.com/tz/tz-link.htm which points to free source code
>and a much larger database at ftp://elsie.nci.nih.gov/pub/
>
>
>----- Original Message -----
>From: "John Korb" <[log in to unmask]>
>To: <[log in to unmask]>
>Sent: Monday, June 03, 2002 4:03 PM
>Subject: [HP3000-L] TZTAB questions
>
>
> > Time zones are my latest headache.
> >
> > I need to have some programs handle data from multiple times zones,
> > automatically determining whether Daylight Savings Time is in effect, and
> > automatically taking Daylight Savings Time into account (or ignoring it).
> >
> > Were it not for places which don't recognize daylight savings time
> > (Arizona, part of Indiana, Hawaii, Puerto Rico) I wouldn't have to worry
> > about daylight savings times, but these areas don't switch to daylight
> > savings time, and thus need to be accommodated.
> >
> > I know I can find out what the time is in Hawaii (or other non-local time
> > zones) from the shell by:
> >
> > shell/iX> TZ="HST10"
> > shell/iX> date +%H
> > 09
> >
> > but I need find the hour (in the target time zone) from within a SPLASH!
>or
> > Business Basic program and I need to find it fast (the shell is at least
>an
> > order of magnitude too slow).
> >
> > Question 1:
> > Is TZTAB replaced by patches or when a new version of MPE is installed?
> > Since some of the time zones I need to accommodate are not listed in the
> > TZTAB file, I'll need to add entries for them. If there is a significant
> > risk that the TZTAB file will be replaced by HP, I'll need to make sure my
> > customized file "replaces" the HP file on a daily basis before
> > production. However, I'll also need to capture the new HP supplied file
> > when it appears.
> >
> > Question 2:
> > Is there a C library procedure (or Intrinsic that I've missed) that I can
> > call from SPLASH! (or Business Basic) that lets me pass a TZ value to it
> > (ex. "EST5EDT" or "HST10"), and it returns the current hour (24 hour
> > format) in the specified time zone?
> >
> > Thanks for your help!
> >
> > John
> >
> > * To join/leave the list, search archives, change list settings, *
> > * etc., please visit http://raven.utc.edu/archives/hp3000-l.html *
* To join/leave the list, search archives, change list settings, *
* etc., please visit http://raven.utc.edu/archives/hp3000-l.html *
|
