nsdate

I want to get firstdate、lastdate of month，I try NSDateComponents *components = [calendar components:units fromDate:[NSDate date]]; [components setDay:1]; self.currentDate = [calendar dateFromComponents:components]; int m = components.month; int y = components.year; int d = components.day; log: 2012,5,1 How can i get lastdate od month? please give me some advice，thank you!! Some NSDate category methods I wrote will help you: Here's an easy way to find the start of a month: (NSDate *) startOfMonth { NSCalendar * calendar = [NSCalendar currentCalendar]; NSDateComponents * currentDateComponents =

I was working on an iPhone application, and I need to display the time in a label. So I wrote the follow: NSDate *date = [NSDate date]; NSDateFormatter *dateFormatter = [[NSDateFormatter alloc] init]; [dateFormatter setDateFormat:@"HH:mm a"]; NSString *formattedDateString = [dateFormatter stringFromDate:date]; timeLabel.text = formattedDateString;** It displays time in label but in 24H format. Example: 15.00 PM instead of 3.00 PM I want to display time in 12h format, i.e. 3.00 PM What should I do? Thanks in advance. [dateFormatter setDateFormat:@"hh:mm a"]; Note the lower case h's. Date

I have available an array of dictionary that contains NSDate and NSNumber values. I wanted to plot date on X axis. For plotting I need to supply xRanges to plot with some decimal values. I don't understand how can I supply NSDate values to xRange (low and length). And what should be there in this method: -(NSNumber *)numberForPlot:(CPPlot *)plot field:(NSUInteger)fieldEnum recordIndex:(NSUInteger)index I mean how my date value will be returned as NSNumber ? I think I should use some interval over there, but what should be the exact conversion? Can any one explain me what are the exact

I'm getting dates as Unix timestamps through my API and I want to convert them into NSDate objects in Swift. How can I do that? Try this: var date = NSDate(timeIntervalSince1970: timeInterval) 来源： https://stackoverflow.com/questions/26844132/how-to-convert-unix-timestamp-into-swift-nsdate-object

I have the following code: [ [NSDate date] descriptionWithLocale: @"yyyy-MM-dd" ] I want it to return a date in the following format: "2009-04-23" But it returns: Thursday, April 23, 2009 11:27:03 PM GMT+03:00 What am I doing wrong? Thank you in advance. You are using the wrong method. Instead try descriptionWithCalendarFormat:timeZone:locale: [[NSDate date] descriptionWithCalendarFormat:@"%Y-%m-%d" timezone:nil locale:nil]; Also note that the method is expecting a different format than the one in your question. The full documentation for that can be found here . EDIT: Though as Mike noted,

I have the following two date strings: (1) 24/04/2013 and (2) 19/03/2013 I'm trying to convert these dates into Islamic (Um Al Qura) dates, I'm using this code block to do so: NSDateFormatter *df = [[NSDateFormatter alloc] init]; df.dateFormat = @"dd/MM/yyyy"; df.calendar = [[NSCalendar alloc] initWithCalendarIdentifier:NSGregorianCalendar]; NSDate *dateInGrogrian = [df dateFromString:@"24/04/2013"]; NSDateFormatter *df2 = [[NSDateFormatter alloc] init]; NSCalendar * cal = [[NSCalendar alloc] initWithCalendarIdentifier:NSIslamicCalendar]; [df2 setCalendar:cal]; [df2 setDateFormat:@"dd/MM/yyyy"