[tz] Fwd: Howard Hinnant's tz Library (was Beginner's help request)

Bill Seymour stdbill.h at pobox.com
Wed Nov 8 20:19:04 UTC 2017

Oops...meant this for the list, not just Daniel.


---------- Forwarded message ----------
From: Bill Seymour <stdbill.h at pobox.com>
Date: Wed, Nov 8, 2017 at 2:16 PM
Subject: Howard Hinnant's tz Library (was Beginner's help request)
To: Daniel Ford <dfnojunk at gmail.com>

Yes, Howard's (exquisite in my opinion) library is specifically for
C++, and is moving forward
for inclusion in the ISO standard.  (Indeed, a subgroup gave it
unanimous consent just this

>From http://www.open-std.org/jtc1/sc22/wg21/docs/papers/2017/p0355r4.html:

    "The implementation has been ported to Windows, Linux, Android,
macOS and iOS."

I've BCCd Howard in case he has anything more to say about it (although
I wouldn't be surprised if he already follows this list anyway).

--Bill Seymour

On Wed, Nov 8, 2017 at 12:38 AM, Daniel Ford <dfnojunk at gmail.com> wrote:
> Oops, looks like I was mistaken.  Howard's library appears to be not (specifically) for Arduino, but a C++ library for Windows (and maybe other) platforms.  Maybe it will compile in the Arduino IDE, though I suspect it will be problematic, if possible at all.
> And I've so far found only one TZdb mirror that keeps a current copy of the data - very disappointing.  It's a shame the whole TZdb scheme is so user-unfriendly.  Quite discouraging.
> Regards,
> Daniel
> -----Original Message-----
> From: Daniel Ford [mailto:dfnojunk at gmail.com]
> Sent: Saturday, November 04, 2017 7:03 PM
> To: 'Time zone mailing list'
> Subject: RE: [tz] Beginner's help request
> Woohoo!  I've discovered (and downloaded) an Arduino library, written by Howard E. Hinnant:
> "This timezone library is a complete parser of the IANA timezone database.  It provides for an easy way to access all of the data in this database, using the types from "date.h" and <chrono>.  The IANA database also includes data on leap seconds, and this library provides utilities to compute with that information as well."
> All I need to find now are established TZdb mirrors that keep their copy up-to-date, so I don't overload the master TZdb with queries.  Can anyone point me to any, please?
> Regards,
> Daniel
> ---------------
> Daniel Ford (Gerroa, Australia)

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