How to create a specific date in the distant past, the BC era.
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by alloy
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Published on 2010-04-27T07:46:23Z
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2010/04/27
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I’m trying to create a date in the BC era, but failing pretty hard. The following returns ‘4713’ as the year, instead of ‘-4712’:
NSCalendar *calendar = [[NSCalendar alloc] initWithCalendarIdentifier:NSGregorianCalendar];
NSDateComponents *components = [NSDateComponents new];
[components setYear: -4712];
NSDate *date = [calendar dateFromComponents:components];
NSLog(@"%d", [[calendar components:NSYearCalendarUnit fromDate: date] year]);
Any idea what I’m doing wrong?
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