NSString (+timezone) to NSDate

Question

failing to convert NSString into NSDate

result: date = nil;

(*NOTE: date receiving from In App Purchase Receipt)

NSString * date_string = @"2017-09-24 11:20:21 Etc/GMT";

NSDateFormatter *dateFormatter = [[NSDateFormatter alloc] init];
[dateFormatter setDateFormat:@"yyyy-MM-dd HH:mm:ss"];
NSDate *date = [dateFormatter dateFromString:date_string];
NSLog(@"date %@",date);

Answer 1

Try this..

    NSString * date_string = @"2017-09-24 11:20:21 Etc/GMT";
    NSDateFormatter *dateFormatter = [[NSDateFormatter alloc] init];
   [dateFormatter setDateFormat:@"yyyy-MM-dd HH:mm:ss VV"];
    NSDate *date = [dateFormatter dateFromString:date_string];
    NSLog(@"date %@",date);

Answer 2

The problem is that you haven't told the date formatter how to deal with the funny sequence of characters at the end of the date ie the Etc/GMT . You format needs a time zone specifier at the end of it. VV might do the trick ie

[dateFormatter setDateFormat:@"yyyy-MM-dd HH:mm:ss VV"];