nsdate

I want to convert server UTC time to local time and vice-versa. Here is my code.. var isTimeFromServer = true var time:String! var period:String! let timeString = "6:59 AM" //Current UTC time if isTimeFromServer { let index = timeString.index(timeString.startIndex, offsetBy: 5) let twelve = timeString.substring(to: index) var dateString:String! let dateFormatter = DateFormatter() dateFormatter.dateFormat = "H:mm" let date12 = dateFormatter.date(from: twelve)! dateFormatter.dateFormat = "h:mm a" let date22 = dateFormatter.string(from: date12) //print(date22) dateString = date22 //print(

I'm writing a piece of code where I want to time how long a button was held down. To do that I recorded an NSDate() when the button was pressed, and tried using the timeIntervalSinceDate function when the button was released. That seems to work but I can't find any way to print the result or switch it to an integer. var timeAtPress = NSDate() @IBAction func pressed(sender: AnyObject) { println("pressed") timeAtPress = NSDate() } @IBAction func released(sender: AnyObject) { println("released") var elapsedTime = NSDate.timeIntervalSinceDate(timeAtPress) duration = ??? } I've seen a few similar

I want to get the day, month and year components of NSDate in integer form i.e. if the date is 1/2/1988 then I should get 1, 2 and 1988 separately as an integer. How can I do this in iOS? I found the similar question but the method descriptionWithCalendarFormat : gives a warning and seems to be deprecated by now. Janak Nirmal Here you are, NSDate *currentDate = [NSDate date]; NSCalendar* calendar = [NSCalendar currentCalendar]; NSDateComponents* components = [calendar components:NSCalendarUnitYear|NSCalendarUnitMonth|NSCalendarUnitDay fromDate:currentDate]; // Get necessary date components

I created a simple function to get first and last day of a week for a day in it. Looking at the NSLog output i found that different values are returned from a NSDate descriptor and component day for the same date, why ? Here NSLog outputs: NSDATE: 2011-04-03 22:00:00 +0000, DAY COMPONENT: 4 NSDATE: 2011-04-09 22:00:00 +0000, DAY COMPONENT: 10 As you can see, NSDATE is 3 of April and day component is 4 for the first row, and respectively 9 and 10 for the second one. Here the code: NSDate *date = [NSDate date]; //Today is April 5th 2011 NSCalendar *cal =[[NSCalendar alloc

#define stdDateFormat @"YYYYMMdd'T'hh:mm:ssZ" NSDateFormatter *dateFormat = [[NSDateFormatter alloc]init]; [dateFormat setDateFormat:stdDateFormat]; NSString *TimeOfSync = [dateFormat stringFromDate:syncDate]; NSLog(@"date format: %@",stdDateFormat); NSLog(@"syncDate: %@",syncDate); NSLog(@"TimeOfSync: %@",TimeOfSync); Logged output: date format: YYYYMMdd'T'hh:mm:ssZ syncDate: 2009-01-03 19:00:00 +0000 TimeOfSync: 20080103T11:00:00-0800 Can anyone help? The only thing I can see is the extra space just before the timezone in the input date string. Thanks. Use lowercase yyyy for the year instead

I am trying to get current date in Swift using NSDate() . When I create breakpoint and stop application, I can see that there is 3 hours difference with devices' system time. Application is running on real iPhone. How to fix this? I also wrote the following in App Delegate to be sure: NSTimeZone.setDefaultTimeZone(NSTimeZone(name: "Europe/Kiev")!) But it still does not work. It doesn't return the wrong time. It returns exactly the right time. NSDate doesn't have any timezone information. Right now, my computer and your computer will report the exact same time when we call NSDate (). NSLog

Team, I am comparing the date which is formed from string using NSDateFormatter with the iOS system date. The below statement returns true when the system date time settings is set with 24-Hour Time ON, but the same code returns false when 24-Hour Time OFF. Problematic Code: if ([(NSDate*)[NSDate date] compare:currDate] == NSOrderedAscending) { // -- Code -- This is executed only when the 4-Hour Time ON } I am confused. The string using which I am getting the date is in 24 hours format. Is this a problem? Or anything else? Date Formatting Code: -(NSDate *)getDateFromString:(NSString *

Edited 07/08/13: Apple has an excellent set of WWDC videos that really helped me understand the various date and time classes in Objective-C, and how to correctly perform time calculations/manipulations with them. "Solutions to Common Date and Time Challenges" ( HD video , SD video , slides (PDF) ) (WWDC 2013) "Performing Calendar Calculations" ( SD video , slides (PDF) ) (WWDC 2011) Note: links require a free Apple Developer membership. I'm writing an app for a friend's podcast. She broadcasts her show live every Sunday at 5PM, and I would like to write some code in my app to optionally