NSDate’s description method returns times in UTC, which if you are in the US Eastern Time Zone during daylight savings time is 4 hours later than your wall clock time. In other words, at 10pm your time it is 2am the next day in UTC. The usual way to fix it is to use NSDateFormatter … Read more
It’s because you are not setting the date formatter’s locale to the special en_US_POSIX locale. Most likely your iPhone 5 has a different setting for the 24-hour setting. You need to set the special locale whenever you parse a fixed format string.
Your problem has two parts, parsing the time and getting the difference: NSDateFormatter* dateFormatter = [[[NSDateFormatter alloc] init] autorelease]; [dateFormatter setLocale:[[[NSLocale alloc] initWithLocaleIdentifier:@”en_US_POSIX”] autorelease]]; [dateFormatter setDateFormat:@”mm:ss:SS”]; NSDate* firstDate = [dateFormatter dateFromString:@”01:00:00″]; NSDate* secondDate = [dateFormatter dateFromString:@”01:02:00″]; NSTimeInterval timeDifference = [secondDate timeIntervalSinceDate:firstDate];
NSDateFormatter *dateFormat = [[NSDateFormatter alloc] init]; [dateFormat setDateFormat:@”MM/dd/yyyy h:mm a”]; NSDate *date = [dateFormat dateFromString:dateStr]; [dateFormat release]; there is no problem in 2 digit day or 2 digit month. This must help you.
You are facing this problem because your date formatter is not correct.Suppose your newInvoice.date variable store “11:02:23″ the your dateFormatter should be @”yy:MM:dd” and if your newInvoice.date variable store”2/22/11″ then your dateFormatter should be @”MM/dd/yy” NSDate *dateTemp = [[NSDate alloc] init]; NSDateFormatter *dateFormat1 = [[NSDateFormatter alloc] init]; NSDateFormatter *dateFormat2 = [[NSDateFormatter alloc] init]; [dateFormat1 setDateFormat:@”MM/dd/yy”]; … Read more
An NSTimeInterval, as its name, um, implies, doesn’t represent the same thing as an NSDate. An NSDate is a moment in time. A time interval is a stretch of time. To get a point from an interval, you have to have another point. Your question is like asking “How do I convert 12 inches to … Read more
The problem is with the timezone on the end. You need to either have it as: GMT-0X:00 or as -0X00 with no separate between hours and minutes. The following two combinations work: Combo 1 – use GMT format (GMT-0X:00) and ZZZZ NSDateFormatter* dateFormatter = [[[NSDateFormatter alloc] init] autorelease]; [dateFormatter setDateFormat:@”yyyy-MM-dd’T’HH:mm:ssZZZZ”]; NSLog(@”DATE FORMAT:%@”, [dateFormatter dateFromString:@”2008-12-29T00:27:42GMT-08:00″]); Combo … Read more
Try this: -(NSDate *)dateWithOutTime:(NSDate *)datDate { if( datDate == nil ) { datDate = [NSDate date]; } NSDateComponents* comps = [[NSCalendar currentCalendar] components:NSYearCalendarUnit|NSMonthCalendarUnit|NSDayCalendarUnit fromDate:datDate]; return [[NSCalendar currentCalendar] dateFromComponents:comps]; }
I have tested your scenario and added some code for your reference. Please test the below and please let me know it is useful for you. NSString *dateStr = @”2012-07-16 07:33:01″; NSDateFormatter *dateFormatter1 = [[NSDateFormatter alloc] init]; [dateFormatter1 setDateFormat:@”yyyy-MM-dd HH:mm:ss”]; NSDate *date = [dateFormatter1 dateFromString:dateStr]; NSLog(@”date : %@”,date); NSTimeZone *currentTimeZone = [NSTimeZone localTimeZone]; NSTimeZone *utcTimeZone … Read more
NSDate represents an instance in time, so it doesn’t make sense to represent an interval of time as an NSDate. What you want is NSDateComponents: NSDate *dateA; NSDate *dateB; NSCalendar *calendar = [[NSCalendar alloc] initWithCalendarIdentifier:NSCalendarIdentifierGregorian]; NSDateComponents *components = [calendar components:NSCalendarUnitYear|NSCalendarUnitMonth|NSCalendarUnitDay fromDate:dateA toDate:dateB options:0]; NSLog(@”Difference in date components: %i/%i/%i”, components.day, components.month, components.year);