on iOS8 with RegionFormat set on UK and Date&Time 24-Hour Time disabled, mt_dateFromISOString returns null

[mdstage]

On iOS8 (did not test other version, but it s probably also the case), if RegionFormat is set to UK and Date&Time 24-Hour disabled, mt_dateFromISOString returns null:

NSString *dateString = @"2017-12-31 23:00:00 GMT";
NSDate *premiumUntil = [NSDate mt_dateFromISOString:dateString];
NSLog(@"Date: %@", premiumUntil); // Date: (null)

By setting the locale in (NSDate *)mt_dateFromISOString:(NSString *)ISOString:

[formatter setLocale:[[NSLocale alloc] initWithLocaleIdentifier:[[NSLocale preferredLanguages] objectAtIndex:0]]];

it's working fine:

NSString *dateString = @"2017-12-31 23:00:00 GMT";
NSDate *premiumUntil = [NSDate mt_dateFromISOString:dateString];
NSLog(@"Date: %@", premiumUntil); // Date 2017-12-31 11:00:00 pm +0000

Note: as there is no Date&Time, this cannot be tested in the simulator, only on device

[yas375]

@mdstage probably the same #55