NSDate gâche ma date! Mauvais fuseau horaire?

Question

NSLog(@"%@ - %@ - %@",currTime,sunrise,sunset); 
NSString *curtime = [[currTime substringToIndex:(currTime.length-4)] stringByAppendingString:@"-0000"]; 
NSDateFormatter *formatter1 = [[NSDateFormatter alloc]init]; 
NSLocale *locale = [[[NSLocale alloc] initWithLocaleIdentifier:@"en_US_POSIX"]autorelease]; 
[formatter1 setDateFormat:@"EEE, dd MMM yyyy h:mm aZ"]; 
[formatter1 setLocale:locale]; 

NSDate *time = [formatter1 dateFromString:curtime]; 
[formatter1 setDateFormat:@"EEE dd MMM yyyy"]; 
NSString *zone = [formatter1 stringFromDate:time]; 
NSString *r = [sunrise stringByAppendingString:zone]; 
NSString *s = [sunset stringByAppendingString:zone]; 

[formatter1 setDateFormat:@"hh:mm aEEE dd MMM yyyy"]; 
NSDate *rise = [formatter1 dateFromString:r]; 
NSDate *set = [formatter1 dateFromString:s]; 

unsigned int flags = NSHourCalendarUnit | NSMinuteCalendarUnit | NSDayCalendarUnit; 
NSCalendar *calendar = [NSCalendar currentCalendar]; 
NSDateComponents *components1 = [calendar components:flags fromDate:rise]; 
NSDateComponents *components2 = [calendar components:flags fromDate:set]; 
NSDateComponents *components3 = [calendar components:flags fromDate:time]; 

NSInteger riseHour = [components1 hour]; 
NSInteger setHour = [components2 hour]; 
NSInteger timeHour = [components3 hour]; 

NSLog(@"\nSunrise: %@ \nSunset: %@ \nCurrent: %@",rise,set,time); 
NSLog(@"Rise: %i Set: %i Time: %i",riseHour,setHour,timeHour); 

Je m'attendrais à ce que cela fonctionne. Cependant, regardez la sortie ci-dessous:

Sun, 12 juin 2011 01h54 CDT - 06h33-20h34

Lever du soleil: 2011-06-11 21:33:00 +0000

Coucher du soleil: 2011-06-12 11:34:00 +0000

actuel: 2011-06-12 01:54:00 +0000

hausse: 6 < correct

Set : 20 < corr ect

Heure: 10 < mal

Answer 1

Essayez le fuseau horaire à fixer GMT-0 sur les deux formatter et le calendrier. Tu pourrais être agréablement surpris.

[NSTimeZone timeZoneForSecondsFromGMT:0]