[tz] Preparing to fork tzdb

[Howard Hinnant]

On Sep 20, 2021, at 10:57 PM, dpatte <dpatte at relativedata.com> wrote:
> 
> When I read an astronomical journal and read of a bolide sighting in 1957 at 7:30 PM in haiti, it is important that I can attach that to a ut in 1957. But if it's now in the 'merged data' I am now out of luck.

In C++-speak:

    #include <chrono>
    #include <iostream>

    int
    main()
    {
        using namespace std;
        using namespace std::chrono;

        zoned_time zt{"America/Port-au-Prince", local_days{1957y/June/5} + 19h + 30min};
        cout << format("%F %T %Z", clock_cast<tai_clock>(zt.get_sys_time())) << '\n';
    }

Output:

    1957-06-06 00:30:10 TAI

Note that programmers are hard-coding the name "America/Port-au-Prince”.

Howard

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