Converting String To NSDate Returned From Google Always Returns Nil

Question

Converting string to date always returns nil. Must be missing something here:

NSHTTPURLResponse *httpResponse = nil;
[NSURLConnection sendSynchronousRequest:request returningResponse:&httpResponse error:nil];
NSString *dateString = [[httpResponse allHeaderFields] objectForKey:@"Date"];
DebugLog(@" *** GOOGLE DATE:  %@ ****",dateString); 


NSDateFormatter *dateFormat = [[NSDateFormatter alloc] init];
[NSDateFormatter dateFormatFromTemplate:@"E MMM d yyyy" options:0 locale:locale];
NSDate *currentDateFromWeb = [dateFormat dateFromString:dateString];

String prints correctly as: Wed, 28 Jul 2021 13:51:16 GMT

Tried a variety of date formatter styles, still nil

Answer 1

You can use "zzz" for the time-zone:

"E, d MMM yyyy HH:mm:ss zzz"

So, this should give you a valid date:

NSString *str = @"Wed, 28 Jul 2021 13:51:16 GMT";

NSDateFormatter *df = [NSDateFormatter new];
[df setDateFormat:@"E, d MMM yyyy HH:mm:ss zzz"];

NSLocale *locale = [[NSLocale alloc] initWithLocaleIdentifier:@"en_US_POSIX"];
[df setLocale:locale];

NSDate *d = [df dateFromString:str];

NSLog(@"d: %@", d);

Output (where I am, US East Coast):

d: Wed Jul 28 09:51:16 2021