I am working on an iOS app procedure that queries a SQLite database and attempts to upload the records onto SalesForce. However, I seem to be having issues with the date fields. I keep getting an error message that it cannot be serialized. My JSON-savvy coworker suggested I try using the ASCII notation to represent the "/" in the dates, but it still keeps giving me the same error. How do I format the StartDate field so SalesForce will accept it?

 if (sqlite3_prepare_v2(database, [query UTF8String],-1,&statement, nil) ==SQLITE_OK)
    {
        while (sqlite3_step(statement) == SQLITE_ROW)
        {
           

NSDate* MyDate = [formatter dateFromString: [NSString stringWithCString (char*)sqlite3_column_text(statement, 2) encoding:NSUTF8StringEncoding]];

NSMutableString * StartDate = [NSMutableString stringWithFormat:@"%@",[formatter stringFromDate:MyDate]];

 [StartDate replaceCharactersInRange: [StartDate rangeOfString:@"/"] withString:@"&#48" ];

 [StartDate replaceCharactersInRange: [StartDate rangeOfString:@"/"] withString:@"&#48" ];
            
           //Other fields, irrelevant code to problem

            
            
NSDictionary * fields = [NSDictionary dictionaryWithObjects:[NSArray arrayWithObjects: [NSNumber numberWithInt:FormID],AuditID,StartDate,StartTime,StationID,UserID,Gate,FlightNumber,RegNoseNumber,Completed,Year,AirCraft, nil] forKeys:[NSArray arrayWithObjects: @"FormID__c",@"AuditID__c",@"StartedDate__c",@"StartedTime__c",@"StationID__c",@"UserID__c",@"Gate__c",@"FlightNumber__c",@"RegistryNoseNumber__c",@"Completed__c",@"Year__c",@"Aircraft__c", nil]  ];
            
SFRestRequest *request = [[SFRestAPI sharedInstance] requestForCreateWithObjectType:@"Form__c" fields:fields];
            
            
[[SFRestAPI sharedInstance] send:request delegate:self];
            
            
}
sqlite3_finalize(statement);
sqlite3_close(database);