Bug report submitted. It also turns out there are lots of interesting failures with NSDate, NSDateFormatter, NSCalendar, NSNumberFormatter, etc. if you go sufficiently far from the present -- 144,684 AD and 5,828,963 AD are the magic numbers in the positive direction.
Blog post here: http://359north.com/blog/2015/02/08/the-limits-of-nsdate-and-friends/ iOS Project here: https://github.com/359north/nsdate-limits NSDate is precise to the second out to around 285,426,782 AD, but some of its compatriots let it down. On Thu, Feb 5, 2015 at 11:34 AM, Greg Parker <gpar...@apple.com> wrote: > > > 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 <jgo...@yahoo.com> 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 gpar...@apple.com Runtime Wrangler > > > _______________________________________________ Cocoa-dev mailing list (Cocoa-dev@lists.apple.com) Please do not post admin requests or moderator comments to the list. Contact the moderators at cocoa-dev-admins(at)lists.apple.com Help/Unsubscribe/Update your Subscription: https://lists.apple.com/mailman/options/cocoa-dev/archive%40mail-archive.com This email sent to arch...@mail-archive.com
