nsdate

问题 I have a date time: Friday, July 8, 2016 at 6:30:00 PM India Standard Time I want a date time like this: Friday, July 8, 2016 at 6:30:00 PM Central Daylight Time I do not want to convert the dates using NSDateFormatter from one timezone to another, because this conversion will give me Friday, July 8, 2016 at 8:00:00 AM Central Daylight Time I want the same date time, but in a different timezone. How can I do that? 回答1: dasblinkenlight's answer is absolutely correct, but I'll explain a little

问题 I am having a mutable array in that array i am having only past date, current date & future date. I have to separate the future date & store into another array. Can you help me. This is my array: uniqueItems( "2015-03-01", "2015-02-28", "2015-02-22", "2015-02-21", "2015-02-20", "2015-02-15", "2015-02-14", "2015-02-13", "2015-02-08", "2015-02-07", "2015-02-01", "2015-01-31", "2015-01-30", "2015-01-25", "2015-01-24", "2015-01-18", "2015-01-17", "2015-01-16", "2015-01-11", "2015-01-10", "2014-12

问题 I am trying to format a date i am getting from twitter using the STTwitter library. However the code that I've tried so far has not worked. Code for getting the date from twitter: NSString *dateString = [status valueForKey:@"created_at"]; This returns the time, date, time zone and year in which the tweet was made which looks messy. I tried using the following code to convert this and make it neater: NSDateFormatter *dateFormatter =[[NSDateFormatter alloc]init]; [dateFormatter setDateFormat:@

问题 i Have 2 NSDate object the first is set to one month ahead and the seconed is set for today. i want to check if today is after (Bigger) then the month ahead object. How can i do it? 回答1: Read the Date and Time Programming Guide a lot of Date & Time concepts (and how Cocoa handle them) are explained here in details, it is really worth reading. Also, in the NSDate class Reference, you can find a dedicated section "Comparing dates" for all the methods used to compare two dates. So you should use

问题 i'm developing an app for iPhone and I'm stuck to this point: i get this data from an object: { date = "2014-08-04 11:21:26 +0000"; idChallenger = "-1"; index = "-1"; time = "-1"; }, { date = "2015-07-31 14:50:40 +0000"; idChallenger = 43; index = "-1"; time = "-1"; }, { date = "2015-07-31 16:18:57 +0000"; idChallenger = "-1"; index = "-1"; time = "-1"; }, { date = "2015-07-31 16:19:29 +0000"; idChallenger = "-1"; index = "-1"; time = "-1"; }, { date = "2015-08-04 15:25:26 +0000";

问题 i have date in this format 2014-09-20 04:45:20 +0000 and i need to convert this to yyyy-MM-dd'T'HH:mm:ss.SSSZ format.I tried with the following code NSDateFormatter * formatter = [[NSDateFormatter alloc] init]; [formatter setDateFormat:@"yyyy-MM-dd'T'HH:mm:ss.SSS'Z'"]; NSDate *date = [formatter dateFromString:@"2014-09-20 04:45:20 +0000"]; NSLog(@"%@",date); but date giving me null value.. I am geting 2014-09-20 04:45:20 +0000 from time picker so anythg needs to be done on picker side will

问题 I want to convert 2013-03-24T02:15:23-08:00 string to NSDate object . I tried formatter string yyyy-MM-ddTHH:mm:ss-Z , but the NSDate object is coming as nil. I know it is a trivial question but right now I am really stuck into it. Below is my code for conversion NSDateFormatter *dateFormatter = [[NSDateFormatter alloc]init]; [dateFormatter setDateFormat:@"yyyy-MM-ddTHH:mm:ss-Z"]; NSDate* date = [dateFormatter dateFromString:image.dateTaken]; Kindly help. 回答1: There are two errors in the date

问题 I am trying to convert string into NSDate using following code. NSString *old = [[NSUserDefaults standardUserDefaults] valueForKey:@"OLD_DATE"]; NSDateFormatter *formatter = [[NSDateFormatter alloc] init]; [formatter setDateFormat:@"dd-MM-yyyy"]; NSDate *oldDate = [formatter dateFromString:old]; NSLog(@"Old Date : %@",oldDate); I am setting OLD_DATE as following : NSDate *oldDate = [NSDate date]; NSString *old = [[NSString stringWithFormat:@"%@",oldDate] retain]; [[NSUserDefaults

问题 I retrieve the NSTimeInterval as follows: NSTimeInterval milisecondedDate = ([[NSDate date] timeIntervalSince1970] * 1000); Which logs this: UNIX Timestamp: "1307710190993.865967" I only want the value before the dot to send with JSON like this: "/Date(1307710131826+0200)/" Any suggestions? Thanks in advance, 回答1: Get the current timestamp in milliseconds since 1970 UNIX Timestamp. NSTimeInterval millisecondedDate = ([[NSDate date] timeIntervalSince1970] * 1000); Format the milliesecondedDate

问题 I'm trying to convert a date string into a NSDate. I have this input date string 2014-10-09 17:57 and this timezone +4 or Asia/Dubai and for some reason, i get this NSDate after i execute the code below 2014-10-09 13:57:00 +0000 . let dateString = "2014-10-09 17:57" let formatter = NSDateFormatter() formatter.dateFormat = "yyyy-MM-dd HH:mm" formatter.timeZone = NSTimeZone(name: "Asia/Dubai") println("\(formatter.dateFromString(dateString))") I want to get a date like this 2014-10-09 17:57