Re: NSCalendar and NSDates prior to October 15, 1582
Re: NSCalendar and NSDates prior to October 15, 1582
- Subject: Re: NSCalendar and NSDates prior to October 15, 1582
- From: Greg Parker <email@hidden>
- Date: Thu, 05 Feb 2015 11:34:30 -0800
> On 2015 Jan 30, at 12:32, Steve Mykytyn wrote:
>
> The documentation for the Date and Time Programming Guide for iOS does not seem to be telling the truth, or perhaps I'm doing something wrong.
Please file a bug report.
> On Feb 5, 2015, at 6:56 AM, Jeffrey Oleander <email@hidden> wrote:
>
> Some countries did not adopt the Gregorian adjustment until the 1750s, and others much later than that (Russia partially converted in 1700 but not completely until 1922, Turkey in 1926). Anyway, it's not something you can do a neat mathematical conversion on and have it work "perfectly" everywhere and for every date. What of those of us who have to deal with dates going back to e.g. 1200BCE?
The Date and Time Programming Guide mentions that issue too.
"Some countries adopted the Gregorian calendar at various later times. Nevertheless, for consistency the change is modeled at the same time regardless of locale. If you need absolute historical accuracy for a particular locale…"
--
Greg Parker email@hidden Runtime Wrangler
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