Re: Converting local time to another time zone

[rick baird <rick.baird@xxxxxxxxx>]

Ooh!  awesome. Thanks Scott!

On Wed, Apr 10, 2013 at 5:22 PM, Scott Klement
<midrange-l@xxxxxxxxxxxxxxxx> wrote:
> The QWCCVTDT API should allow you to convert between any two arbitrary time
> zones.  So you shouldn't need to figure out UTC offsets and all of that, it
> should do all of the work for you.
>
> Not sure how to get a list of time zones, though.  Maybe just get a list of
> *TIMZON objects?
>
>
>
> On 4/10/2013 4:09 PM, rick baird wrote:
> > hey all,
> >
> > I'm writing a service program where I will convert local time to
> > another time zone - or vise versa and return it. Basically, I need to
> > know what time it is somewhere else (a predefined remote location), or
> > what time it is locally based on a time in another time zone.  Yes,
> > this will include areas that do not observe daylight savings time.
> >
> > I will store the time zone for each individual remote location in a
> > file and retrieve the local time zone from system value QTIMZON.  Once
> > I do that, I can do the time math, provided I know the UTC offset.
> >
> > My questions are these:
> >
> > Is there an api I can use (V5R4 and lower) to retrieve the list of
> > valid time zones listed in the WRKTIMZON?
> >
> > Can I somehow retrieve the UTC offset for a particular time zone?
> > According to the help, this offset does not self adjust for daylight
> > savings time, so are the dates the time zone springs forward and back
> > stored somewhere?  How does the operating system know how to spring
> > forward and back? Is that only stored for local time, or by time zone?
> >
> > I'm hoping to not have to store the time zones, offsets and DST dates
> > myself if I can help it, but if that's the best way to go, then I need
> > to get started on that.
> >
> > Thanks!
> >
> > Rick