I need to know how to get my string: 16/03/2012 1:15 PM
into an NSDate to add to calendar.
What would be the correct format for that?
Cheers!
You need to convert a NSString to NSDate:
NSString* myStringDate = #"16/03/2012 1:15 PM";
NSDateFormatter *df = [[NSDateFormatter alloc] init];
[df setDateFormat:#"dd/MM/yyyy hh:mm a"];
NSDate *resultDate = [df dateFromString: myStringDate];
Related
I want to format 06-06-2013 1:51 PM as Jun 06,2013.
I have tried all possible different formatting styles using NSDateFormatter but failed.
Try this
First You need to convert this string back to NSDate then again convert the NSdate to string using formatter.
NSDateFormatter *dateFormatForDB = [[NSDateFormatter alloc] init];
[dateFormatForDB setDateFormat:#"dd-MM-yyyy HH:mm a"]; //Note capital H is 4 24-hour time format
NSDate *aDate = [[[NSDate alloc] initWithTimeInterval:0 sinceDate:[dateFormatForDB dateFromString:aDateString]] autorelease];
if(aDate){
[formatter setDateFormat:#"MMM dd,yyyy"];
NSString *date = [formatter stringFromDate:aDate];
[dateFormatForDB release];
}
Try to use this format
[df setDateFormat:#"MMM dd,yyyy];
By looking at your format, i think this is what you are looking for...
NSDateFormatter *df = [[NSDateFormatter alloc] init];
[df setDateFormat:#"dd-MM-yyyy hh:mm a"];
NSDate *newDate = [df dateFromString:dateString];
NSDateFormatter *df2 = [[NSDateFormatter alloc] init];
[df2 setDateFormat:#"MMM dd,yyyy"];
NSString *formattedDate = [df2 stringFromDate:newDate];
This will give you the date as string in the required format. If you want time in 24hr format, replace 'hh' with 'HH'.
How can i get the time from a datetime string according to my time zone. My time zone time is +5:30 GMT.The datetime looks like-
04/03/2013 3:30:00 AM
I want the output like-
9:00:00 AM
Thanks in advance.
You need two date formatters.
One to convert string to date. And then date to string to get required in time format.
NSDateFormatter *dateFormatter=[NSDateFormatter new];
[dateFormatter setDateFormat:#"MM/dd/yyyy hh:mm:ss a"];
NSDate *date=[dateFormatter dateFromString:#"04/03/2013 3:30:00 AM"];
NSDateFormatter *dfTime = [NSDateFormatter new];
[dfTime setDateFormat:#"hh:mm:ss a"];
NSString *time=[dfTime stringFromDate:date];
*Not compiled and check
If you have date and time in string which is date time in GMT then you need to add GMT in your string. By this you can get actual time of your time zone -
NSString *dateStr = #"04/03/2013 3:30:00 AM GMT";
NSDateFormatter *dateFormatter = [[NSDateFormatter alloc] init];
[dateFormatter setDateFormat:#"MM/dd/yyyy hh:mm:ss a ZZZ"];
NSDate *date = [dateFormatter dateFromString:dateStr];
[dateFormatter setDateFormat:#"hh:mm:ss a"];
NSString *opDateStr = [dateFormatter stringFromDate:date];
NSLog(#"op = %#",opDateStr);
NSString *strdate= #"04/03/2013 3:30:00 AM";
NSDateFormatter *dateFormatter=[NSDateFormatter new];
[dateFormatter setDateFormat:#"MM/dd/yyyy hh:mm:ss a"];
[dateFormatter setTimeZone:[NSTimeZone timeZoneForSecondsFromGMT:0]];
NSDate *date=[dateFormatter dateFromString:strdate];
NSDateFormatter *dfTime = [NSDateFormatter new];
[dfTime setDateFormat:#"hh:mm:ss a"];
NSString *time=[dfTime stringFromDate:date];
NSLog(#"%#",time);
NSDateFormatter * formatter = [[NSDateFormatter alloc]init];
[formatter setDateFormat:#"dd/MM/yyyy hh:mm:ss a"];
NSLog(#"%#",[formatter stringFromDate:[NSDate date]]);
Output
06/03/2013 10:41:18 AM
[formatter setDateFormat:#"hh:mm:ss a"];
NSLog(#"%#",[formatter stringFromDate:[NSDate date]]);
Output
10:41:18 AM
instead of [NSDate date] pass the required date to be formatted.
As you want the time from the time string you provided according to the current time zone, you need to do something like this
NSDateFormatter *dateFormatter=[NSDateFormatter new];
[dateFormatter setDateFormat:#"MM/dd/yyyy hh:mm:ss a zzz"];
NSDate *date=[dateFormatter dateFromString:#"04/03/2013 3:30:00 AM 0000"];
NSDateFormatter *dfTime = [NSDateFormatter new];
[dfTime setTimeZone:[NSTimeZone systemTimeZone]];
[dfTime setDateFormat:#"hh:mm:ss a"];
NSString *time=[dfTime stringFromDate:date];
NSLog(#"%#",time);
you wont get the real output unless there is the offset present which is the 0000.(its the GMT offset). Also the time formatter wont work perfectly if the format of the dateString and its formatter are different. So you need to do it MM/dd/yyyy hh:mm:ss a zzz, zzz is the offset. Now your output will be 09:00:00 AM
I try to convert my NSString to NSDate object, but NSDateFormatter returns me a strange value.
Here is code:
NSDateFormatter *dateFormat = [[NSDateFormatter alloc] init];
[dateFormat setDateFormat:#"yyyy-MM-dd HH:mm"];
NSDate *date = [dateFormat dateFromString:#"2012-08-15 00:00"];
[dateFormat release];
date value is 2012-08-14 21:00 +0000. It is 3 hours difference between NSString value and NSDate value. I think I've missed something, but I don't know what.
This is what i use:
NSDateFormatter *dateFormat = [[NSDateFormatter alloc] init];
[dateFormat setDateFormat:#"yyyy-MM-dd HH:mm:ss ZZZ"];
NSDate *date = [dateFormat dateFromString:#"2012-08-15 00:00:00 +0000"];
NSLog(#"\n\n DATE: %# \n\n\n", date);
The +0000 is timezone, so make sure you use your timezone, like +0400.
Edit:
If you can't change the string, you can use this code to do it:
NSDateFormatter *dateFormat = [[NSDateFormatter alloc] init];
[dateFormat setDateFormat:#"yyyy-MM-dd HH:mm"];
[dateFormat setTimeZone:[NSTimeZone timeZoneForSecondsFromGMT:0]];
NSDate *date = [dateFormat dateFromString:#"2012-08-15 00:00"];
As i knew NSDate holds Grinwich time, so if you are in Moscow time zone, everything is wright
In objective c for NSDate if you did not set the setTimeZone, NSDate will take default timezone as localTimeZone. so if you need to get the exact date which you give as NSString string format, you need to setTimeZone as UTC. Follow the sample code, I guess it will be helpful for you.
NSDateFormatter *loacalformatter=[[NSDateFormatter alloc]init];
[loacalformatter setDateFormat:#"yyyy-MM-dd HH:mm:ss"];
NSDate *localDate =[loacalformatter dateFromString:#"2012-08-15 00:00"];
NSLog(#"localDate :%#",localDate);
NSDateFormatter *UTCformatter=[[NSDateFormatter alloc]init];
[UTCformatter setTimeZone:[NSTimeZone timeZoneWithName:#"UTC"]];
[UTCformatter setDateFormat:#"yyyy-MM-dd HH:mm:ss"];
NSDate *UTCDate =[UTCformatter dateFromString:#"2012-08-15 00:00"];
NSLog(#"UTCDate :%#",UTCDate);
UTCDate :2012-08-15 00:00 +0000 (GMT+00:00)
As suggested in the comments, if the date you receive is UTC then you need to convert it to your local timezone. Apple recommend you always use a properly configured NSDateFormatter when displaying dates, to handle localisation issues.
Here's some example code for turning an NSDate into an NSString:
NSDate *date = // initialised elsewhere
NSDateFormatter *dateFormat = [[NSDateFormatter alloc] init];
dateFormat.locale = [NSLocale currentLocale];
dateFormat.timeZone = [NSTimeZone localTimeZone];
dateFormat.timeStyle = NSDateFormatterShortStyle;
dateFormat.dateStyle = NSDateFormatterShortStyle;
dateFormat.locale = [NSLocale currentLocale];
NSString *dateAsString = [dateFormat stringFromDate:date];
I have a date as a string in the format:
2010-12-31 20:21:00 +0200
What I'd like to do is parse this using NSDateFormatter to an NSDate object but I'm having difficulty matching the format properly.
NSDateFormatter *dateFormatter = NSDateFormatter.alloc.init;
[dateFormatter setTimeZone: NSTimeZone.localTimeZone];
[dateFormatter setDateFormat: #"yyyy-MM-dd HH:mm:ss'Z'"];
[dateFormatter dateFromString: #"2010-12-31 20:21:00 +0200"] // returns nil ;
Can anybody help me find the correct format? thanks
This code works:
NSDateFormatter *dateFormatter = NSDateFormatter.alloc.init;
[dateFormatter setTimeZone:NSTimeZone.localTimeZone];
[dateFormatter setDateFormat:#"yyyy-MM-dd HH:mm:ss Z"];
NSDate *date = [dateFormatter dateFromString:#"2010-12-31 20:21:00 +0200"];
NSLog(#"%#", [dateFormatter stringFromDate:date]);
And I just want you to know, kind sir, that my eyes bleed when I see this NSDateFormatter.alloc.init
NSDateFormatter* format = [[NSDateFormatter alloc]init];
[format setDateFormat:#"MM/dd/YYYY"];
NSString * currentDate = [format stringFromDate:[NSDate date]];
NSDate *date = [format dateFromString:currentDate];
I have a NSString that I want to load into a NSDate. The string looks like: 21/10/2011 5:42:02 PM
What I have written is:
NSDateFormatter *dateFormat = [[NSDateFormatter alloc] init];
[dateFormat setDateFormat:#"d/M/yyyy h:mm:ss a"];
NSDate *date = [dateFormat dateFromString:dateString];
The date ends up with a null value.
There is obviously something wrong with the date formatter but I am not sure what.
Any help would be greatly appreciated.
If the string doesn't match the format, then it will return null.
For example, here's an example that matches the format and one that doesn't:
NSString *dateString = #"11/09/2011 12:22:02";
NSDateFormatter *dateFormat = [[NSDateFormatter alloc] init];
[dateFormat setDateFormat:#"d/M/yyyy h:mm:ss"];
NSDate *date = [dateFormat dateFromString:dateString];
NSLog(#"dateString; %#", date);
NSString *dateString2 = #"2011-11-09 12:22:02 +0000";
NSDate *date2 = [dateFormat2 dateFromString:dateString2];
NSLog(#"dateString; %#", date2);
This outputs:
2011-11-09 07:27:54.342 Craplet[45608:707] dateString; 2011-09-11 05:22:02 +0000
2011-11-09 07:27:54.343 Craplet[45608:707] dateString; (null)