Question

the following code

NSCalendar *cal = [NSCalendar currentCalendar];
[cal setFirstWeekday:2];
[cal setMinimumDaysInFirstWeek:4];

NSDateComponents *comp = [[NSDateComponents alloc] init];
[comp setYear: 2012];
[comp setMonth:3];
[comp setDay: 12];
NSDate *date = [cal dateFromComponents:comp];
NSLog(@"date:%@",date);

logs:

date:2012-03-11 23:00:00 +0000

Any Idea, why this happen and how to avoid
Tnx

Answer 1

I assume you are using the CET time zone locally. This is what the [NSCalendar currentCalendar] will use as a time zone then.

When you dump a NSDate with NSLog, you will get the date in its raw UTC form. To print the date using a local format, look into the NSDateFormatter class, which has a timeZone property:

....
NSDate *date = [cal dateFromComponents:comp];
NSDateFormatter* fmt = [[NSDateFormatter alloc] init];
fmt.timeZone = [NSTimeZone defaultTimeZone]; // Probably not required
NSLog(@"date:%@", [fmt stringFromDate:date]);