How about...
NSDateFormatter *formatter = [[NSDateFormatter alloc] init];
[formatter setDateFormat:@"yyyy"];
//Optionally for time zone conversions
[formatter setTimeZone:[NSTimeZone timeZoneWithName:@"..."]];
NSString *stringFromDate = [formatter stringFromDate:myNSDateInstance];
//unless ARC is active
[formatter release];
Swift 4.2 :
func stringFromDate(_ date: Date) -> String {
let formatter = DateFormatter()
formatter.dateFormat = "dd MMM yyyy HH:mm" //yyyy
return formatter.string(from: date)
}
I don't know how we all missed this: localizedStringFromDate:dateStyle:timeStyle:
NSString *dateString = [NSDateFormatter localizedStringFromDate:[NSDate date]
dateStyle:NSDateFormatterShortStyle
timeStyle:NSDateFormatterFullStyle];
NSLog(@"%@",dateString);
outputs '13/06/12 00:22:39 GMT+03:00'
Hope to add more value by providing the normal formatter including the year, month and day with the time. You can use this formatter for more than just a year
[dateFormat setDateFormat: @"yyyy-MM-dd HH:mm:ss zzz"];
there are a number of NSDate
helpers on the web, I tend to use:
https://github.com/billymeltdown/nsdate-helper/
Readme extract below:
NSString *displayString = [NSDate stringForDisplayFromDate:date];
This produces the following kinds of output:
‘3:42 AM’ – if the date is after midnight today
‘Tuesday’ – if the date is within the last seven days
‘Mar 1’ – if the date is within the current calendar year
‘Mar 1, 2008’ – else ;-)
In Swift:
var formatter = NSDateFormatter()
formatter.dateFormat = "yyyy"
var dateString = formatter.stringFromDate(YourNSDateInstanceHERE)
NSDateFormatter *dateformate=[[NSDateFormatter alloc]init];
[dateformate setDateFormat:@"yyyy"]; // Date formater
NSString *date = [dateformate stringFromDate:[NSDate date]]; // Convert date to string
NSLog(@"date :%@",date);
If you don't have NSDate
-descriptionWithCalendarFormat:timeZone:locale:
available (I don't believe iPhone/Cocoa Touch includes this) you may need to use strftime and monkey around with some C-style strings. You can get the UNIX timestamp from an NSDate
using NSDate -timeIntervalSince1970
.
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